1395998420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1144261}}^1$

素因数の和:1144331

約数の個数: 24

約数和(自身を含む): 2979658248

約数和(自身を除く): 1583659828

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1144261, 2288522, 4577044, 5721305, 11442610, 22885220, 69799921, 139599842, 279199684, 348999605, 697999210, 1395998420]

約数ペア:

[(1, 1395998420), (2, 697999210), (4, 348999605), (5, 279199684), (10, 139599842), (20, 69799921), (61, 22885220), (122, 11442610), (244, 5721305), (305, 4577044), (610, 2288522), (1220, 1144261)]