80357680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77267}}^1$

素因数の和:77293

約数の個数: 40

約数和(自身を含む): 201205872

約数和(自身を除く): 120848192

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 77267, 154534, 309068, 386335, 618136, 772670, 1004471, 1236272, 1545340, 2008942, 3090680, 4017884, 5022355, 6181360, 8035768, 10044710, 16071536, 20089420, 40178840, 80357680]

約数ペア:

[(1, 80357680), (2, 40178840), (4, 20089420), (5, 16071536), (8, 10044710), (10, 8035768), (13, 6181360), (16, 5022355), (20, 4017884), (26, 3090680), (40, 2008942), (52, 1545340), (65, 1236272), (80, 1004471), (104, 772670), (130, 618136), (208, 386335), (260, 309068), (520, 154534), (1040, 77267)]