20512323040

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1\times {\mathrm{947}}^1$

素因数の和:1401

約数の個数: 192

約数和(自身を含む): 54766430208

約数和(自身を除く): 34254107168

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 124, 155, 160, 176, 220, 248, 310, 341, 352, 397, 440, 496, 620, 682, 794, 880, 947, 992, 1240, 1364, 1588, 1705, 1760, 1894, 1985, 2480, 2728, 3176, 3410, 3788, 3970, 4367, 4735, 4960, 5456, 6352, 6820, 7576, 7940, 8734, 9470, 10417, 10912, 12307, 12704, 13640, 15152, 15880, 17468, 18940, 20834, 21835, 24614, 27280, 29357, 30304, 31760, 34936, 37880, 41668, 43670, 49228, 52085, 54560, 58714, 61535, 63520, 69872, 75760, 83336, 87340, 98456, 104170, 117428, 123070, 135377, 139744, 146785, 151520, 166672, 174680, 196912, 208340, 234856, 246140, 270754, 293570, 322927, 333344, 349360, 375959, 393824, 416680, 469712, 492280, 541508, 587140, 645854, 676885, 698720, 751918, 833360, 939424, 984560, 1083016, 1174280, 1291708, 1353770, 1503836, 1614635, 1666720, 1879795, 1969120, 2166032, 2348560, 2583416, 2707540, 3007672, 3229270, 3759590, 4135549, 4332064, 4697120, 5166832, 5415080, 6015344, 6458540, 7519180, 8271098, 10333664, 10830160, 11654729, 12030688, 12917080, 15038360, 16542196, 20677745, 21660320, 23309458, 25834160, 30076720, 33084392, 41355490, 46618916, 51668320, 58273645, 60153440, 66168784, 82710980, 93237832, 116547290, 128202019, 132337568, 165421960, 186475664, 233094580, 256404038, 330843920, 372951328, 466189160, 512808076, 641010095, 661687840, 932378320, 1025616152, 1282020190, 1864756640, 2051232304, 2564040380, 4102464608, 5128080760, 10256161520, 20512323040]

約数ペア:

[(1, 20512323040), (2, 10256161520), (4, 5128080760), (5, 4102464608), (8, 2564040380), (10, 2051232304), (11, 1864756640), (16, 1282020190), (20, 1025616152), (22, 932378320), (31, 661687840), (32, 641010095), (40, 512808076), (44, 466189160), (55, 372951328), (62, 330843920), (80, 256404038), (88, 233094580), (110, 186475664), (124, 165421960), (155, 132337568), (160, 128202019), (176, 116547290), (220, 93237832), (248, 82710980), (310, 66168784), (341, 60153440), (352, 58273645), (397, 51668320), (440, 46618916), (496, 41355490), (620, 33084392), (682, 30076720), (794, 25834160), (880, 23309458), (947, 21660320), (992, 20677745), (1240, 16542196), (1364, 15038360), (1588, 12917080), (1705, 12030688), (1760, 11654729), (1894, 10830160), (1985, 10333664), (2480, 8271098), (2728, 7519180), (3176, 6458540), (3410, 6015344), (3788, 5415080), (3970, 5166832), (4367, 4697120), (4735, 4332064), (4960, 4135549), (5456, 3759590), (6352, 3229270), (6820, 3007672), (7576, 2707540), (7940, 2583416), (8734, 2348560), (9470, 2166032), (10417, 1969120), (10912, 1879795), (12307, 1666720), (12704, 1614635), (13640, 1503836), (15152, 1353770), (15880, 1291708), (17468, 1174280), (18940, 1083016), (20834, 984560), (21835, 939424), (24614, 833360), (27280, 751918), (29357, 698720), (30304, 676885), (31760, 645854), (34936, 587140), (37880, 541508), (41668, 492280), (43670, 469712), (49228, 416680), (52085, 393824), (54560, 375959), (58714, 349360), (61535, 333344), (63520, 322927), (69872, 293570), (75760, 270754), (83336, 246140), (87340, 234856), (98456, 208340), (104170, 196912), (117428, 174680), (123070, 166672), (135377, 151520), (139744, 146785)]