80708680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155209}}^1$

素因数の和:155233

約数の個数: 32

約数和(自身を含む): 195564600

約数和(自身を除く): 114855920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 155209, 310418, 620836, 776045, 1241672, 1552090, 2017717, 3104180, 4035434, 6208360, 8070868, 10088585, 16141736, 20177170, 40354340, 80708680]

約数ペア:

[(1, 80708680), (2, 40354340), (4, 20177170), (5, 16141736), (8, 10088585), (10, 8070868), (13, 6208360), (20, 4035434), (26, 3104180), (40, 2017717), (52, 1552090), (65, 1241672), (104, 776045), (130, 620836), (260, 310418), (520, 155209)]