345776780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{1031}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 746383680

約数和(自身を除く): 400606900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 409, 410, 818, 820, 1031, 1636, 2045, 2062, 4090, 4124, 5155, 8180, 10310, 16769, 20620, 33538, 42271, 67076, 83845, 84542, 167690, 169084, 211355, 335380, 421679, 422710, 843358, 845420, 1686716, 2108395, 4216790, 8433580, 17288839, 34577678, 69155356, 86444195, 172888390, 345776780]

約数ペア:

[(1, 345776780), (2, 172888390), (4, 86444195), (5, 69155356), (10, 34577678), (20, 17288839), (41, 8433580), (82, 4216790), (164, 2108395), (205, 1686716), (409, 845420), (410, 843358), (818, 422710), (820, 421679), (1031, 335380), (1636, 211355), (2045, 169084), (2062, 167690), (4090, 84542), (4124, 83845), (5155, 67076), (8180, 42271), (10310, 33538), (16769, 20620)]