80640692

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{166613}}^1$

素因数の和:166639

約数の個数: 18

約数和(自身を含む): 155117634

約数和(自身を除く): 74476942

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 166613, 333226, 666452, 1832743, 3665486, 7330972, 20160173, 40320346, 80640692]

約数ペア:

[(1, 80640692), (2, 40320346), (4, 20160173), (11, 7330972), (22, 3665486), (44, 1832743), (121, 666452), (242, 333226), (484, 166613)]