81296800

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7817}}^1$

素因数の和:7850

約数の個数: 72

約数和(自身を含む): 213759756

約数和(自身を除く): 132462956

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2600, 5200, 7817, 10400, 15634, 31268, 39085, 62536, 78170, 101621, 125072, 156340, 195425, 203242, 250144, 312680, 390850, 406484, 508105, 625360, 781700, 812968, 1016210, 1250720, 1563400, 1625936, 2032420, 2540525, 3126800, 3251872, 4064840, 5081050, 6253600, 8129680, 10162100, 16259360, 20324200, 40648400, 81296800]

約数ペア:

[(1, 81296800), (2, 40648400), (4, 20324200), (5, 16259360), (8, 10162100), (10, 8129680), (13, 6253600), (16, 5081050), (20, 4064840), (25, 3251872), (26, 3126800), (32, 2540525), (40, 2032420), (50, 1625936), (52, 1563400), (65, 1250720), (80, 1016210), (100, 812968), (104, 781700), (130, 625360), (160, 508105), (200, 406484), (208, 390850), (260, 312680), (325, 250144), (400, 203242), (416, 195425), (520, 156340), (650, 125072), (800, 101621), (1040, 78170), (1300, 62536), (2080, 39085), (2600, 31268), (5200, 15634), (7817, 10400)]