20815546440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1\times {\mathrm{823}}^1$

素因数の和:1404

約数の個数: 256

約数和(自身を含む): 69636833280

約数和(自身を除く): 48821286840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 93, 104, 120, 124, 130, 155, 156, 186, 195, 248, 260, 310, 312, 372, 390, 403, 465, 520, 523, 620, 744, 780, 806, 823, 930, 1046, 1209, 1240, 1560, 1569, 1612, 1646, 1860, 2015, 2092, 2418, 2469, 2615, 3138, 3224, 3292, 3720, 4030, 4115, 4184, 4836, 4938, 5230, 6045, 6276, 6584, 6799, 7845, 8060, 8230, 9672, 9876, 10460, 10699, 12090, 12345, 12552, 13598, 15690, 16120, 16213, 16460, 19752, 20397, 20920, 21398, 24180, 24690, 25513, 27196, 31380, 32097, 32426, 32920, 33995, 40794, 42796, 48360, 48639, 49380, 51026, 53495, 54392, 62760, 64194, 64852, 67990, 76539, 81065, 81588, 85592, 97278, 98760, 101985, 102052, 106990, 127565, 128388, 129704, 135980, 153078, 160485, 162130, 163176, 194556, 203970, 204104, 210769, 213980, 243195, 255130, 256776, 271960, 306156, 320970, 324260, 331669, 382695, 389112, 407940, 421538, 427960, 430429, 486390, 510260, 612312, 632307, 641940, 648520, 663338, 765390, 815880, 843076, 860858, 972780, 995007, 1020520, 1053845, 1264614, 1283880, 1291287, 1326676, 1530780, 1658345, 1686152, 1721716, 1945560, 1990014, 2107690, 2152145, 2529228, 2582574, 2653352, 3061560, 3161535, 3316690, 3443432, 3980028, 4215380, 4304290, 4975035, 5058456, 5165148, 5595577, 6323070, 6456435, 6633380, 7960056, 8430760, 8608580, 9950070, 10330296, 11191154, 12646140, 12912870, 13266760, 13343299, 16786731, 17217160, 19900140, 22382308, 25292280, 25825740, 26686598, 27977885, 33573462, 39800280, 40029897, 44764616, 51651480, 53373196, 55955770, 66716495, 67146924, 80059794, 83933655, 106746392, 111911540, 133432990, 134293848, 160119588, 167867310, 173462887, 200149485, 223823080, 266865980, 320239176, 335734620, 346925774, 400298970, 520388661, 533731960, 671469240, 693851548, 800597940, 867314435, 1040777322, 1387703096, 1601195880, 1734628870, 2081554644, 2601943305, 3469257740, 4163109288, 5203886610, 6938515480, 10407773220, 20815546440]

約数ペア:

[(1, 20815546440), (2, 10407773220), (3, 6938515480), (4, 5203886610), (5, 4163109288), (6, 3469257740), (8, 2601943305), (10, 2081554644), (12, 1734628870), (13, 1601195880), (15, 1387703096), (20, 1040777322), (24, 867314435), (26, 800597940), (30, 693851548), (31, 671469240), (39, 533731960), (40, 520388661), (52, 400298970), (60, 346925774), (62, 335734620), (65, 320239176), (78, 266865980), (93, 223823080), (104, 200149485), (120, 173462887), (124, 167867310), (130, 160119588), (155, 134293848), (156, 133432990), (186, 111911540), (195, 106746392), (248, 83933655), (260, 80059794), (310, 67146924), (312, 66716495), (372, 55955770), (390, 53373196), (403, 51651480), (465, 44764616), (520, 40029897), (523, 39800280), (620, 33573462), (744, 27977885), (780, 26686598), (806, 25825740), (823, 25292280), (930, 22382308), (1046, 19900140), (1209, 17217160), (1240, 16786731), (1560, 13343299), (1569, 13266760), (1612, 12912870), (1646, 12646140), (1860, 11191154), (2015, 10330296), (2092, 9950070), (2418, 8608580), (2469, 8430760), (2615, 7960056), (3138, 6633380), (3224, 6456435), (3292, 6323070), (3720, 5595577), (4030, 5165148), (4115, 5058456), (4184, 4975035), (4836, 4304290), (4938, 4215380), (5230, 3980028), (6045, 3443432), (6276, 3316690), (6584, 3161535), (6799, 3061560), (7845, 2653352), (8060, 2582574), (8230, 2529228), (9672, 2152145), (9876, 2107690), (10460, 1990014), (10699, 1945560), (12090, 1721716), (12345, 1686152), (12552, 1658345), (13598, 1530780), (15690, 1326676), (16120, 1291287), (16213, 1283880), (16460, 1264614), (19752, 1053845), (20397, 1020520), (20920, 995007), (21398, 972780), (24180, 860858), (24690, 843076), (25513, 815880), (27196, 765390), (31380, 663338), (32097, 648520), (32426, 641940), (32920, 632307), (33995, 612312), (40794, 510260), (42796, 486390), (48360, 430429), (48639, 427960), (49380, 421538), (51026, 407940), (53495, 389112), (54392, 382695), (62760, 331669), (64194, 324260), (64852, 320970), (67990, 306156), (76539, 271960), (81065, 256776), (81588, 255130), (85592, 243195), (97278, 213980), (98760, 210769), (101985, 204104), (102052, 203970), (106990, 194556), (127565, 163176), (128388, 162130), (129704, 160485), (135980, 153078)]