81304688

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{137339}}^1$

素因数の和:137384

約数の個数: 20

約数和(自身を含む): 161786520

約数和(自身を除く): 80481832

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 137339, 274678, 549356, 1098712, 2197424, 5081543, 10163086, 20326172, 40652344, 81304688]

約数ペア:

[(1, 81304688), (2, 40652344), (4, 20326172), (8, 10163086), (16, 5081543), (37, 2197424), (74, 1098712), (148, 549356), (296, 274678), (592, 137339)]