657465980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1\times {\mathrm{1747}}^1$

素因数の和:2394

約数の個数: 48

約数和(自身を含む): 1428381696

約数和(自身を除く): 770915716

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 607, 620, 1214, 1747, 2428, 3035, 3494, 6070, 6988, 8735, 12140, 17470, 18817, 34940, 37634, 54157, 75268, 94085, 108314, 188170, 216628, 270785, 376340, 541570, 1060429, 1083140, 2120858, 4241716, 5302145, 10604290, 21208580, 32873299, 65746598, 131493196, 164366495, 328732990, 657465980]

約数ペア:

[(1, 657465980), (2, 328732990), (4, 164366495), (5, 131493196), (10, 65746598), (20, 32873299), (31, 21208580), (62, 10604290), (124, 5302145), (155, 4241716), (310, 2120858), (607, 1083140), (620, 1060429), (1214, 541570), (1747, 376340), (2428, 270785), (3035, 216628), (3494, 188170), (6070, 108314), (6988, 94085), (8735, 75268), (12140, 54157), (17470, 37634), (18817, 34940)]