640828500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:651

約数の個数: 192

約数和(自身を含む): 2047368960

約数和(自身を除く): 1406540460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 59, 60, 65, 75, 78, 100, 118, 125, 130, 150, 156, 177, 195, 236, 250, 260, 295, 300, 325, 354, 375, 390, 500, 557, 590, 650, 708, 750, 767, 780, 885, 975, 1114, 1180, 1300, 1475, 1500, 1534, 1625, 1671, 1770, 1950, 2228, 2301, 2785, 2950, 3068, 3250, 3342, 3540, 3835, 3900, 4425, 4602, 4875, 5570, 5900, 6500, 6684, 7241, 7375, 7670, 8355, 8850, 9204, 9750, 11140, 11505, 13925, 14482, 14750, 15340, 16710, 17700, 19175, 19500, 21723, 22125, 23010, 27850, 28964, 29500, 32863, 33420, 36205, 38350, 41775, 43446, 44250, 46020, 55700, 57525, 65726, 69625, 72410, 76700, 83550, 86892, 88500, 95875, 98589, 108615, 115050, 131452, 139250, 144820, 164315, 167100, 181025, 191750, 197178, 208875, 217230, 230100, 278500, 287625, 328630, 362050, 383500, 394356, 417750, 427219, 434460, 492945, 543075, 575250, 657260, 724100, 821575, 835500, 854438, 905125, 985890, 1086150, 1150500, 1281657, 1643150, 1708876, 1810250, 1971780, 2136095, 2172300, 2464725, 2563314, 2715375, 3286300, 3620500, 4107875, 4272190, 4929450, 5126628, 5430750, 6408285, 8215750, 8544380, 9858900, 10680475, 10861500, 12323625, 12816570, 16431500, 21360950, 24647250, 25633140, 32041425, 42721900, 49294500, 53402375, 64082850, 106804750, 128165700, 160207125, 213609500, 320414250, 640828500]

約数ペア:

[(1, 640828500), (2, 320414250), (3, 213609500), (4, 160207125), (5, 128165700), (6, 106804750), (10, 64082850), (12, 53402375), (13, 49294500), (15, 42721900), (20, 32041425), (25, 25633140), (26, 24647250), (30, 21360950), (39, 16431500), (50, 12816570), (52, 12323625), (59, 10861500), (60, 10680475), (65, 9858900), (75, 8544380), (78, 8215750), (100, 6408285), (118, 5430750), (125, 5126628), (130, 4929450), (150, 4272190), (156, 4107875), (177, 3620500), (195, 3286300), (236, 2715375), (250, 2563314), (260, 2464725), (295, 2172300), (300, 2136095), (325, 1971780), (354, 1810250), (375, 1708876), (390, 1643150), (500, 1281657), (557, 1150500), (590, 1086150), (650, 985890), (708, 905125), (750, 854438), (767, 835500), (780, 821575), (885, 724100), (975, 657260), (1114, 575250), (1180, 543075), (1300, 492945), (1475, 434460), (1500, 427219), (1534, 417750), (1625, 394356), (1671, 383500), (1770, 362050), (1950, 328630), (2228, 287625), (2301, 278500), (2785, 230100), (2950, 217230), (3068, 208875), (3250, 197178), (3342, 191750), (3540, 181025), (3835, 167100), (3900, 164315), (4425, 144820), (4602, 139250), (4875, 131452), (5570, 115050), (5900, 108615), (6500, 98589), (6684, 95875), (7241, 88500), (7375, 86892), (7670, 83550), (8355, 76700), (8850, 72410), (9204, 69625), (9750, 65726), (11140, 57525), (11505, 55700), (13925, 46020), (14482, 44250), (14750, 43446), (15340, 41775), (16710, 38350), (17700, 36205), (19175, 33420), (19500, 32863), (21723, 29500), (22125, 28964), (23010, 27850)]