217467980

素因数分解:

$2^2\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{9631}}^1$

素因数の和:10769

約数の個数: 24

約数和(自身を含む): 457134720

約数和(自身を除く): 239666740

約数列:

[1, 2, 4, 5, 10, 20, 1129, 2258, 4516, 5645, 9631, 11290, 19262, 22580, 38524, 48155, 96310, 192620, 10873399, 21746798, 43493596, 54366995, 108733990, 217467980]

約数ペア:

[(1, 217467980), (2, 108733990), (4, 54366995), (5, 43493596), (10, 21746798), (20, 10873399), (1129, 192620), (2258, 96310), (4516, 48155), (5645, 38524), (9631, 22580), (11290, 19262)]