256990500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:252

約数の個数: 288

約数和(自身を含む): 915812352

約数和(自身を除く): 658821852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 25, 26, 30, 36, 39, 45, 46, 50, 52, 60, 65, 69, 75, 78, 90, 92, 100, 115, 117, 125, 130, 138, 150, 156, 180, 191, 195, 207, 225, 230, 234, 250, 260, 276, 299, 300, 325, 345, 375, 382, 390, 414, 450, 460, 468, 500, 573, 575, 585, 598, 650, 690, 750, 764, 780, 828, 897, 900, 955, 975, 1035, 1125, 1146, 1150, 1170, 1196, 1300, 1380, 1495, 1500, 1625, 1719, 1725, 1794, 1910, 1950, 2070, 2250, 2292, 2300, 2340, 2483, 2691, 2865, 2875, 2925, 2990, 3250, 3438, 3450, 3588, 3820, 3900, 4140, 4393, 4485, 4500, 4775, 4875, 4966, 5175, 5382, 5730, 5750, 5850, 5980, 6500, 6876, 6900, 7449, 7475, 8595, 8625, 8786, 8970, 9550, 9750, 9932, 10350, 10764, 11460, 11500, 11700, 12415, 13179, 13455, 14325, 14625, 14898, 14950, 17190, 17250, 17572, 17940, 19100, 19500, 20700, 21965, 22347, 22425, 23875, 24830, 25875, 26358, 26910, 28650, 29250, 29796, 29900, 34380, 34500, 37245, 37375, 39537, 42975, 43930, 44694, 44850, 47750, 49660, 51750, 52716, 53820, 57109, 57300, 58500, 62075, 65895, 67275, 71625, 74490, 74750, 79074, 85950, 87860, 89388, 89700, 95500, 103500, 109825, 111735, 112125, 114218, 124150, 131790, 134550, 143250, 148980, 149500, 158148, 171327, 171900, 186225, 197685, 214875, 219650, 223470, 224250, 228436, 248300, 263580, 269100, 285545, 286500, 310375, 329475, 336375, 342654, 372450, 395370, 429750, 439300, 446940, 448500, 513981, 549125, 558675, 571090, 620750, 658950, 672750, 685308, 744900, 790740, 856635, 859500, 931125, 988425, 1027962, 1098250, 1117350, 1142180, 1241500, 1317900, 1345500, 1427725, 1647375, 1713270, 1862250, 1976850, 2055924, 2196500, 2234700, 2569905, 2793375, 2855450, 3294750, 3426540, 3724500, 3953700, 4283175, 4942125, 5139810, 5586750, 5710900, 6589500, 7138625, 8566350, 9884250, 10279620, 11173500, 12849525, 14277250, 17132700, 19768500, 21415875, 25699050, 28554500, 42831750, 51398100, 64247625, 85663500, 128495250, 256990500]

約数ペア:

[(1, 256990500), (2, 128495250), (3, 85663500), (4, 64247625), (5, 51398100), (6, 42831750), (9, 28554500), (10, 25699050), (12, 21415875), (13, 19768500), (15, 17132700), (18, 14277250), (20, 12849525), (23, 11173500), (25, 10279620), (26, 9884250), (30, 8566350), (36, 7138625), (39, 6589500), (45, 5710900), (46, 5586750), (50, 5139810), (52, 4942125), (60, 4283175), (65, 3953700), (69, 3724500), (75, 3426540), (78, 3294750), (90, 2855450), (92, 2793375), (100, 2569905), (115, 2234700), (117, 2196500), (125, 2055924), (130, 1976850), (138, 1862250), (150, 1713270), (156, 1647375), (180, 1427725), (191, 1345500), (195, 1317900), (207, 1241500), (225, 1142180), (230, 1117350), (234, 1098250), (250, 1027962), (260, 988425), (276, 931125), (299, 859500), (300, 856635), (325, 790740), (345, 744900), (375, 685308), (382, 672750), (390, 658950), (414, 620750), (450, 571090), (460, 558675), (468, 549125), (500, 513981), (573, 448500), (575, 446940), (585, 439300), (598, 429750), (650, 395370), (690, 372450), (750, 342654), (764, 336375), (780, 329475), (828, 310375), (897, 286500), (900, 285545), (955, 269100), (975, 263580), (1035, 248300), (1125, 228436), (1146, 224250), (1150, 223470), (1170, 219650), (1196, 214875), (1300, 197685), (1380, 186225), (1495, 171900), (1500, 171327), (1625, 158148), (1719, 149500), (1725, 148980), (1794, 143250), (1910, 134550), (1950, 131790), (2070, 124150), (2250, 114218), (2292, 112125), (2300, 111735), (2340, 109825), (2483, 103500), (2691, 95500), (2865, 89700), (2875, 89388), (2925, 87860), (2990, 85950), (3250, 79074), (3438, 74750), (3450, 74490), (3588, 71625), (3820, 67275), (3900, 65895), (4140, 62075), (4393, 58500), (4485, 57300), (4500, 57109), (4775, 53820), (4875, 52716), (4966, 51750), (5175, 49660), (5382, 47750), (5730, 44850), (5750, 44694), (5850, 43930), (5980, 42975), (6500, 39537), (6876, 37375), (6900, 37245), (7449, 34500), (7475, 34380), (8595, 29900), (8625, 29796), (8786, 29250), (8970, 28650), (9550, 26910), (9750, 26358), (9932, 25875), (10350, 24830), (10764, 23875), (11460, 22425), (11500, 22347), (11700, 21965), (12415, 20700), (13179, 19500), (13455, 19100), (14325, 17940), (14625, 17572), (14898, 17250), (14950, 17190)]