649605840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208207}}^1$

素因数の和:208236

約数の個数: 80

約数和(自身を含む): 2168694528

約数和(自身を除く): 1519088688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 208207, 416414, 624621, 832828, 1041035, 1249242, 1665656, 2082070, 2498484, 2706691, 3123105, 3331312, 4164140, 4996968, 5413382, 6246210, 8120073, 8328280, 9993936, 10826764, 12492420, 13533455, 16240146, 16656560, 21653528, 24984840, 27066910, 32480292, 40600365, 43307056, 49969680, 54133820, 64960584, 81200730, 108267640, 129921168, 162401460, 216535280, 324802920, 649605840]

約数ペア:

[(1, 649605840), (2, 324802920), (3, 216535280), (4, 162401460), (5, 129921168), (6, 108267640), (8, 81200730), (10, 64960584), (12, 54133820), (13, 49969680), (15, 43307056), (16, 40600365), (20, 32480292), (24, 27066910), (26, 24984840), (30, 21653528), (39, 16656560), (40, 16240146), (48, 13533455), (52, 12492420), (60, 10826764), (65, 9993936), (78, 8328280), (80, 8120073), (104, 6246210), (120, 5413382), (130, 4996968), (156, 4164140), (195, 3331312), (208, 3123105), (240, 2706691), (260, 2498484), (312, 2082070), (390, 1665656), (520, 1249242), (624, 1041035), (780, 832828), (1040, 624621), (1560, 416414), (3120, 208207)]