256911840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7757}}^1$

素因数の和:7801

約数の個数: 144

約数和(自身を含む): 914947488

約数和(自身を除く): 658035648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 207, 230, 240, 276, 288, 345, 360, 368, 414, 460, 480, 552, 690, 720, 736, 828, 920, 1035, 1104, 1380, 1440, 1656, 1840, 2070, 2208, 2760, 3312, 3680, 4140, 5520, 6624, 7757, 8280, 11040, 15514, 16560, 23271, 31028, 33120, 38785, 46542, 62056, 69813, 77570, 93084, 116355, 124112, 139626, 155140, 178411, 186168, 232710, 248224, 279252, 310280, 349065, 356822, 372336, 465420, 535233, 558504, 620560, 698130, 713644, 744672, 892055, 930840, 1070466, 1117008, 1241120, 1396260, 1427288, 1605699, 1784110, 1861680, 2140932, 2234016, 2676165, 2792520, 2854576, 3211398, 3568220, 3723360, 4281864, 5352330, 5585040, 5709152, 6422796, 7136440, 8028495, 8563728, 10704660, 11170080, 12845592, 14272880, 16056990, 17127456, 21409320, 25691184, 28545760, 32113980, 42818640, 51382368, 64227960, 85637280, 128455920, 256911840]

約数ペア:

[(1, 256911840), (2, 128455920), (3, 85637280), (4, 64227960), (5, 51382368), (6, 42818640), (8, 32113980), (9, 28545760), (10, 25691184), (12, 21409320), (15, 17127456), (16, 16056990), (18, 14272880), (20, 12845592), (23, 11170080), (24, 10704660), (30, 8563728), (32, 8028495), (36, 7136440), (40, 6422796), (45, 5709152), (46, 5585040), (48, 5352330), (60, 4281864), (69, 3723360), (72, 3568220), (80, 3211398), (90, 2854576), (92, 2792520), (96, 2676165), (115, 2234016), (120, 2140932), (138, 1861680), (144, 1784110), (160, 1605699), (180, 1427288), (184, 1396260), (207, 1241120), (230, 1117008), (240, 1070466), (276, 930840), (288, 892055), (345, 744672), (360, 713644), (368, 698130), (414, 620560), (460, 558504), (480, 535233), (552, 465420), (690, 372336), (720, 356822), (736, 349065), (828, 310280), (920, 279252), (1035, 248224), (1104, 232710), (1380, 186168), (1440, 178411), (1656, 155140), (1840, 139626), (2070, 124112), (2208, 116355), (2760, 93084), (3312, 77570), (3680, 69813), (4140, 62056), (5520, 46542), (6624, 38785), (7757, 33120), (8280, 31028), (11040, 23271), (15514, 16560)]