81521816

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{2909}}^1$

素因数の和:3059

約数の個数: 32

約数和(自身を含む): 159235200

約数和(自身を除く): 77713384

約数列:

[1, 2, 4, 8, 31, 62, 113, 124, 226, 248, 452, 904, 2909, 3503, 5818, 7006, 11636, 14012, 23272, 28024, 90179, 180358, 328717, 360716, 657434, 721432, 1314868, 2629736, 10190227, 20380454, 40760908, 81521816]

約数ペア:

[(1, 81521816), (2, 40760908), (4, 20380454), (8, 10190227), (31, 2629736), (62, 1314868), (113, 721432), (124, 657434), (226, 360716), (248, 328717), (452, 180358), (904, 90179), (2909, 28024), (3503, 23272), (5818, 14012), (7006, 11636)]