256903560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 288

約数和(自身を含む): 931694400

約数和(自身を除く): 674790840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 30, 36, 38, 40, 45, 46, 57, 60, 69, 71, 72, 76, 90, 92, 95, 114, 115, 120, 138, 142, 152, 171, 180, 184, 190, 207, 213, 228, 230, 276, 284, 285, 342, 345, 355, 360, 380, 414, 426, 437, 456, 460, 529, 552, 568, 570, 639, 684, 690, 710, 760, 828, 852, 855, 874, 920, 1035, 1058, 1065, 1140, 1278, 1311, 1349, 1368, 1380, 1420, 1587, 1633, 1656, 1704, 1710, 1748, 2070, 2116, 2130, 2185, 2280, 2556, 2622, 2645, 2698, 2760, 2840, 3174, 3195, 3266, 3420, 3496, 3933, 4047, 4140, 4232, 4260, 4370, 4761, 4899, 5112, 5244, 5290, 5396, 6348, 6390, 6532, 6555, 6745, 6840, 7866, 7935, 8094, 8165, 8280, 8520, 8740, 9522, 9798, 10051, 10488, 10580, 10792, 12141, 12696, 12780, 13064, 13110, 13490, 14697, 15732, 15870, 16188, 16330, 17480, 19044, 19596, 19665, 20102, 20235, 21160, 23805, 24282, 24495, 25560, 26220, 26980, 29394, 30153, 31027, 31464, 31740, 32376, 32660, 37559, 38088, 39192, 39330, 40204, 40470, 47610, 48564, 48990, 50255, 52440, 53960, 58788, 60306, 60705, 62054, 63480, 65320, 73485, 75118, 78660, 80408, 80940, 90459, 93081, 95220, 97128, 97980, 100510, 112677, 117576, 120612, 121410, 124108, 146970, 150236, 150765, 155135, 157320, 161880, 180918, 186162, 187795, 190440, 195960, 201020, 225354, 241224, 242820, 248216, 279243, 293940, 300472, 301530, 310270, 338031, 361836, 372324, 375590, 402040, 450708, 452295, 465405, 485640, 558486, 563385, 587880, 603060, 620540, 676062, 713621, 723672, 744648, 751180, 901416, 904590, 930810, 1116972, 1126770, 1206120, 1241080, 1352124, 1396215, 1427242, 1502360, 1690155, 1809180, 1861620, 2140863, 2233944, 2253540, 2704248, 2792430, 2854484, 3380310, 3568105, 3618360, 3723240, 4281726, 4507080, 5584860, 5708968, 6422589, 6760620, 7136210, 8563452, 10704315, 11169720, 12845178, 13521240, 14272420, 17126904, 21408630, 25690356, 28544840, 32112945, 42817260, 51380712, 64225890, 85634520, 128451780, 256903560]

約数ペア:

[(1, 256903560), (2, 128451780), (3, 85634520), (4, 64225890), (5, 51380712), (6, 42817260), (8, 32112945), (9, 28544840), (10, 25690356), (12, 21408630), (15, 17126904), (18, 14272420), (19, 13521240), (20, 12845178), (23, 11169720), (24, 10704315), (30, 8563452), (36, 7136210), (38, 6760620), (40, 6422589), (45, 5708968), (46, 5584860), (57, 4507080), (60, 4281726), (69, 3723240), (71, 3618360), (72, 3568105), (76, 3380310), (90, 2854484), (92, 2792430), (95, 2704248), (114, 2253540), (115, 2233944), (120, 2140863), (138, 1861620), (142, 1809180), (152, 1690155), (171, 1502360), (180, 1427242), (184, 1396215), (190, 1352124), (207, 1241080), (213, 1206120), (228, 1126770), (230, 1116972), (276, 930810), (284, 904590), (285, 901416), (342, 751180), (345, 744648), (355, 723672), (360, 713621), (380, 676062), (414, 620540), (426, 603060), (437, 587880), (456, 563385), (460, 558486), (529, 485640), (552, 465405), (568, 452295), (570, 450708), (639, 402040), (684, 375590), (690, 372324), (710, 361836), (760, 338031), (828, 310270), (852, 301530), (855, 300472), (874, 293940), (920, 279243), (1035, 248216), (1058, 242820), (1065, 241224), (1140, 225354), (1278, 201020), (1311, 195960), (1349, 190440), (1368, 187795), (1380, 186162), (1420, 180918), (1587, 161880), (1633, 157320), (1656, 155135), (1704, 150765), (1710, 150236), (1748, 146970), (2070, 124108), (2116, 121410), (2130, 120612), (2185, 117576), (2280, 112677), (2556, 100510), (2622, 97980), (2645, 97128), (2698, 95220), (2760, 93081), (2840, 90459), (3174, 80940), (3195, 80408), (3266, 78660), (3420, 75118), (3496, 73485), (3933, 65320), (4047, 63480), (4140, 62054), (4232, 60705), (4260, 60306), (4370, 58788), (4761, 53960), (4899, 52440), (5112, 50255), (5244, 48990), (5290, 48564), (5396, 47610), (6348, 40470), (6390, 40204), (6532, 39330), (6555, 39192), (6745, 38088), (6840, 37559), (7866, 32660), (7935, 32376), (8094, 31740), (8165, 31464), (8280, 31027), (8520, 30153), (8740, 29394), (9522, 26980), (9798, 26220), (10051, 25560), (10488, 24495), (10580, 24282), (10792, 23805), (12141, 21160), (12696, 20235), (12780, 20102), (13064, 19665), (13110, 19596), (13490, 19044), (14697, 17480), (15732, 16330), (15870, 16188)]