68804840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{431}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 167650560

約数和(自身を除く): 98845720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 307, 431, 520, 614, 862, 1228, 1535, 1724, 2155, 2456, 3070, 3448, 3991, 4310, 5603, 6140, 7982, 8620, 11206, 12280, 15964, 17240, 19955, 22412, 28015, 31928, 39910, 44824, 56030, 79820, 112060, 132317, 159640, 224120, 264634, 529268, 661585, 1058536, 1323170, 1720121, 2646340, 3440242, 5292680, 6880484, 8600605, 13760968, 17201210, 34402420, 68804840]

約数ペア:

[(1, 68804840), (2, 34402420), (4, 17201210), (5, 13760968), (8, 8600605), (10, 6880484), (13, 5292680), (20, 3440242), (26, 2646340), (40, 1720121), (52, 1323170), (65, 1058536), (104, 661585), (130, 529268), (260, 264634), (307, 224120), (431, 159640), (520, 132317), (614, 112060), (862, 79820), (1228, 56030), (1535, 44824), (1724, 39910), (2155, 31928), (2456, 28015), (3070, 22412), (3448, 19955), (3991, 17240), (4310, 15964), (5603, 12280), (6140, 11206), (7982, 8620)]