1265680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1217}}^1$

素因数の和:1243

約数の個数: 40

約数和(自身を含む): 3171672

約数和(自身を除く): 1905992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1217, 2434, 4868, 6085, 9736, 12170, 15821, 19472, 24340, 31642, 48680, 63284, 79105, 97360, 126568, 158210, 253136, 316420, 632840, 1265680]

約数ペア:

[(1, 1265680), (2, 632840), (4, 316420), (5, 253136), (8, 158210), (10, 126568), (13, 97360), (16, 79105), (20, 63284), (26, 48680), (40, 31642), (52, 24340), (65, 19472), (80, 15821), (104, 12170), (130, 9736), (208, 6085), (260, 4868), (520, 2434), (1040, 1217)]