256643400

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2531}}^1$

素因数の和:2576

約数の個数: 144

約数和(自身を含む): 861842160

約数和(自身を除く): 605198760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 120, 130, 150, 156, 169, 195, 200, 260, 300, 312, 325, 338, 390, 507, 520, 600, 650, 676, 780, 845, 975, 1014, 1300, 1352, 1560, 1690, 1950, 2028, 2531, 2535, 2600, 3380, 3900, 4056, 4225, 5062, 5070, 6760, 7593, 7800, 8450, 10124, 10140, 12655, 12675, 15186, 16900, 20248, 20280, 25310, 25350, 30372, 32903, 33800, 37965, 50620, 50700, 60744, 63275, 65806, 75930, 98709, 101240, 101400, 126550, 131612, 151860, 164515, 189825, 197418, 253100, 263224, 303720, 329030, 379650, 394836, 427739, 493545, 506200, 658060, 759300, 789672, 822575, 855478, 987090, 1283217, 1316120, 1518600, 1645150, 1710956, 1974180, 2138695, 2467725, 2566434, 3290300, 3421912, 3948360, 4277390, 4935450, 5132868, 6416085, 6580600, 8554780, 9870900, 10265736, 10693475, 12832170, 17109560, 19741800, 21386950, 25664340, 32080425, 42773900, 51328680, 64160850, 85547800, 128321700, 256643400]

約数ペア:

[(1, 256643400), (2, 128321700), (3, 85547800), (4, 64160850), (5, 51328680), (6, 42773900), (8, 32080425), (10, 25664340), (12, 21386950), (13, 19741800), (15, 17109560), (20, 12832170), (24, 10693475), (25, 10265736), (26, 9870900), (30, 8554780), (39, 6580600), (40, 6416085), (50, 5132868), (52, 4935450), (60, 4277390), (65, 3948360), (75, 3421912), (78, 3290300), (100, 2566434), (104, 2467725), (120, 2138695), (130, 1974180), (150, 1710956), (156, 1645150), (169, 1518600), (195, 1316120), (200, 1283217), (260, 987090), (300, 855478), (312, 822575), (325, 789672), (338, 759300), (390, 658060), (507, 506200), (520, 493545), (600, 427739), (650, 394836), (676, 379650), (780, 329030), (845, 303720), (975, 263224), (1014, 253100), (1300, 197418), (1352, 189825), (1560, 164515), (1690, 151860), (1950, 131612), (2028, 126550), (2531, 101400), (2535, 101240), (2600, 98709), (3380, 75930), (3900, 65806), (4056, 63275), (4225, 60744), (5062, 50700), (5070, 50620), (6760, 37965), (7593, 33800), (7800, 32903), (8450, 30372), (10124, 25350), (10140, 25310), (12655, 20280), (12675, 20248), (15186, 16900)]