80405390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{1087}}^1$

素因数の和:1676

約数の個数: 32

約数和(自身を含む): 156280320

約数和(自身を除く): 75874930

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 569, 1087, 1138, 2174, 2845, 5435, 5690, 7397, 10870, 14131, 14794, 28262, 36985, 70655, 73970, 141310, 618503, 1237006, 3092515, 6185030, 8040539, 16081078, 40202695, 80405390]

約数ペア:

[(1, 80405390), (2, 40202695), (5, 16081078), (10, 8040539), (13, 6185030), (26, 3092515), (65, 1237006), (130, 618503), (569, 141310), (1087, 73970), (1138, 70655), (2174, 36985), (2845, 28262), (5435, 14794), (5690, 14131), (7397, 10870)]