1789840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1721}}^1$

素因数の和:1747

約数の個数: 40

約数和(自身を含む): 4484088

約数和(自身を除く): 2694248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1721, 3442, 6884, 8605, 13768, 17210, 22373, 27536, 34420, 44746, 68840, 89492, 111865, 137680, 178984, 223730, 357968, 447460, 894920, 1789840]

約数ペア:

[(1, 1789840), (2, 894920), (4, 447460), (5, 357968), (8, 223730), (10, 178984), (13, 137680), (16, 111865), (20, 89492), (26, 68840), (40, 44746), (52, 34420), (65, 27536), (80, 22373), (104, 17210), (130, 13768), (208, 8605), (260, 6884), (520, 3442), (1040, 1721)]