661585168

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{19259}}^1$

素因数の和:19399

約数の個数: 40

約数和(自身を含む): 1361296800

約数和(自身を除く): 699711632

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 113, 152, 226, 304, 452, 904, 1808, 2147, 4294, 8588, 17176, 19259, 34352, 38518, 77036, 154072, 308144, 365921, 731842, 1463684, 2176267, 2927368, 4352534, 5854736, 8705068, 17410136, 34820272, 41349073, 82698146, 165396292, 330792584, 661585168]

約数ペア:

[(1, 661585168), (2, 330792584), (4, 165396292), (8, 82698146), (16, 41349073), (19, 34820272), (38, 17410136), (76, 8705068), (113, 5854736), (152, 4352534), (226, 2927368), (304, 2176267), (452, 1463684), (904, 731842), (1808, 365921), (2147, 308144), (4294, 154072), (8588, 77036), (17176, 38518), (19259, 34352)]