51071380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{18371}}^1$

素因数の和:18519

約数の個数: 24

約数和(自身を含む): 108027360

約数和(自身を除く): 56955980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 18371, 36742, 73484, 91855, 183710, 367420, 2553569, 5107138, 10214276, 12767845, 25535690, 51071380]

約数ペア:

[(1, 51071380), (2, 25535690), (4, 12767845), (5, 10214276), (10, 5107138), (20, 2553569), (139, 367420), (278, 183710), (556, 91855), (695, 73484), (1390, 36742), (2780, 18371)]