80663728

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{122963}}^1$

素因数の和:123012

約数の個数: 20

約数和(自身を含む): 160099128

約数和(自身を除く): 79435400

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 122963, 245926, 491852, 983704, 1967408, 5041483, 10082966, 20165932, 40331864, 80663728]

約数ペア:

[(1, 80663728), (2, 40331864), (4, 20165932), (8, 10082966), (16, 5041483), (41, 1967408), (82, 983704), (164, 491852), (328, 245926), (656, 122963)]