397753990

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{1439}}^1$

素因数の和:1788

約数の個数: 32

約数和(自身を含む): 725345280

約数和(自身を除く): 327591290

約数列:

[1, 2, 5, 10, 131, 211, 262, 422, 655, 1055, 1310, 1439, 2110, 2878, 7195, 14390, 27641, 55282, 138205, 188509, 276410, 303629, 377018, 607258, 942545, 1518145, 1885090, 3036290, 39775399, 79550798, 198876995, 397753990]

約数ペア:

[(1, 397753990), (2, 198876995), (5, 79550798), (10, 39775399), (131, 3036290), (211, 1885090), (262, 1518145), (422, 942545), (655, 607258), (1055, 377018), (1310, 303629), (1439, 276410), (2110, 188509), (2878, 138205), (7195, 55282), (14390, 27641)]