1298484488680

素因数分解:

$2^3\times 5^1\times {\mathrm{40487}}^1\times {\mathrm{801791}}^1$

素因数の和:842289

約数の個数: 32

約数和(自身を含む): 2921665904640

約数和(自身を除く): 1623181415960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 40487, 80974, 161948, 202435, 323896, 404870, 801791, 809740, 1603582, 1619480, 3207164, 4008955, 6414328, 8017910, 16035820, 32071640, 32462112217, 64924224434, 129848448868, 162310561085, 259696897736, 324621122170, 649242244340, 1298484488680]

約数ペア:

[(1, 1298484488680), (2, 649242244340), (4, 324621122170), (5, 259696897736), (8, 162310561085), (10, 129848448868), (20, 64924224434), (40, 32462112217), (40487, 32071640), (80974, 16035820), (161948, 8017910), (202435, 6414328), (323896, 4008955), (404870, 3207164), (801791, 1619480), (809740, 1603582)]