155510920

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{12421}}^1$

素因数の和:12745

約数の個数: 32

約数和(自身を含む): 351045720

約数和(自身を除く): 195534800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12421, 12520, 24842, 49684, 62105, 99368, 124210, 248420, 496840, 3887773, 7775546, 15551092, 19438865, 31102184, 38877730, 77755460, 155510920]

約数ペア:

[(1, 155510920), (2, 77755460), (4, 38877730), (5, 31102184), (8, 19438865), (10, 15551092), (20, 7775546), (40, 3887773), (313, 496840), (626, 248420), (1252, 124210), (1565, 99368), (2504, 62105), (3130, 49684), (6260, 24842), (12421, 12520)]