256302540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{379}}^1$

素因数の和:441

約数の個数: 216

約数和(自身を含む): 891749040

約数和(自身を除く): 635446500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 289, 306, 340, 379, 390, 442, 468, 510, 578, 585, 612, 663, 758, 765, 780, 867, 884, 1020, 1105, 1137, 1156, 1170, 1326, 1445, 1516, 1530, 1734, 1895, 1989, 2210, 2274, 2340, 2601, 2652, 2890, 3060, 3315, 3411, 3468, 3757, 3790, 3978, 4335, 4420, 4548, 4927, 5202, 5685, 5780, 6443, 6630, 6822, 7514, 7580, 7956, 8670, 9854, 9945, 10404, 11271, 11370, 12886, 13005, 13260, 13644, 14781, 15028, 17055, 17340, 18785, 19329, 19708, 19890, 22542, 22740, 24635, 25772, 26010, 29562, 32215, 33813, 34110, 37570, 38658, 39780, 44343, 45084, 49270, 52020, 56355, 57987, 59124, 64430, 67626, 68220, 73905, 75140, 77316, 83759, 88686, 96645, 98540, 109531, 112710, 115974, 128860, 135252, 147810, 167518, 169065, 177372, 193290, 219062, 221715, 225420, 231948, 251277, 289935, 295620, 328593, 335036, 338130, 386580, 418795, 438124, 443430, 502554, 547655, 579870, 657186, 676260, 753831, 837590, 886860, 985779, 1005108, 1095310, 1159740, 1256385, 1314372, 1423903, 1507662, 1642965, 1675180, 1971558, 2190620, 2512770, 2847806, 3015324, 3285930, 3769155, 3943116, 4271709, 4928895, 5025540, 5695612, 6571860, 7119515, 7538310, 8543418, 9857790, 12815127, 14239030, 15076620, 17086836, 19715580, 21358545, 25630254, 28478060, 42717090, 51260508, 64075635, 85434180, 128151270, 256302540]

約数ペア:

[(1, 256302540), (2, 128151270), (3, 85434180), (4, 64075635), (5, 51260508), (6, 42717090), (9, 28478060), (10, 25630254), (12, 21358545), (13, 19715580), (15, 17086836), (17, 15076620), (18, 14239030), (20, 12815127), (26, 9857790), (30, 8543418), (34, 7538310), (36, 7119515), (39, 6571860), (45, 5695612), (51, 5025540), (52, 4928895), (60, 4271709), (65, 3943116), (68, 3769155), (78, 3285930), (85, 3015324), (90, 2847806), (102, 2512770), (117, 2190620), (130, 1971558), (153, 1675180), (156, 1642965), (170, 1507662), (180, 1423903), (195, 1314372), (204, 1256385), (221, 1159740), (234, 1095310), (255, 1005108), (260, 985779), (289, 886860), (306, 837590), (340, 753831), (379, 676260), (390, 657186), (442, 579870), (468, 547655), (510, 502554), (578, 443430), (585, 438124), (612, 418795), (663, 386580), (758, 338130), (765, 335036), (780, 328593), (867, 295620), (884, 289935), (1020, 251277), (1105, 231948), (1137, 225420), (1156, 221715), (1170, 219062), (1326, 193290), (1445, 177372), (1516, 169065), (1530, 167518), (1734, 147810), (1895, 135252), (1989, 128860), (2210, 115974), (2274, 112710), (2340, 109531), (2601, 98540), (2652, 96645), (2890, 88686), (3060, 83759), (3315, 77316), (3411, 75140), (3468, 73905), (3757, 68220), (3790, 67626), (3978, 64430), (4335, 59124), (4420, 57987), (4548, 56355), (4927, 52020), (5202, 49270), (5685, 45084), (5780, 44343), (6443, 39780), (6630, 38658), (6822, 37570), (7514, 34110), (7580, 33813), (7956, 32215), (8670, 29562), (9854, 26010), (9945, 25772), (10404, 24635), (11271, 22740), (11370, 22542), (12886, 19890), (13005, 19708), (13260, 19329), (13644, 18785), (14781, 17340), (15028, 17055)]