642622340

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{2351}}^1$

素因数の和:2612

約数の個数: 48

約数和(自身を含む): 1375073280

約数和(自身を除く): 732450940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 173, 316, 346, 395, 692, 790, 865, 1580, 1730, 2351, 3460, 4702, 9404, 11755, 13667, 23510, 27334, 47020, 54668, 68335, 136670, 185729, 273340, 371458, 406723, 742916, 813446, 928645, 1626892, 1857290, 2033615, 3714580, 4067230, 8134460, 32131117, 64262234, 128524468, 160655585, 321311170, 642622340]

約数ペア:

[(1, 642622340), (2, 321311170), (4, 160655585), (5, 128524468), (10, 64262234), (20, 32131117), (79, 8134460), (158, 4067230), (173, 3714580), (316, 2033615), (346, 1857290), (395, 1626892), (692, 928645), (790, 813446), (865, 742916), (1580, 406723), (1730, 371458), (2351, 273340), (3460, 185729), (4702, 136670), (9404, 68335), (11755, 54668), (13667, 47020), (23510, 27334)]