51505360

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{3557}}^1$

素因数の和:3751

約数の個数: 40

約数和(自身を含む): 120445416

約数和(自身を除く): 68940056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3557, 3620, 7114, 7240, 14228, 14480, 17785, 28456, 35570, 56912, 71140, 142280, 284560, 643817, 1287634, 2575268, 3219085, 5150536, 6438170, 10301072, 12876340, 25752680, 51505360]

約数ペア:

[(1, 51505360), (2, 25752680), (4, 12876340), (5, 10301072), (8, 6438170), (10, 5150536), (16, 3219085), (20, 2575268), (40, 1287634), (80, 643817), (181, 284560), (362, 142280), (724, 71140), (905, 56912), (1448, 35570), (1810, 28456), (2896, 17785), (3557, 14480), (3620, 14228), (7114, 7240)]