201918970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{42689}}^1$

素因数の和:42750

約数の個数: 32

約数和(自身を含む): 405725760

約数和(自身を除く): 203806790

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4730, 42689, 85378, 213445, 426890, 469579, 939158, 1835627, 2347895, 3671254, 4695790, 9178135, 18356270, 20191897, 40383794, 100959485, 201918970]

約数ペア:

[(1, 201918970), (2, 100959485), (5, 40383794), (10, 20191897), (11, 18356270), (22, 9178135), (43, 4695790), (55, 3671254), (86, 2347895), (110, 1835627), (215, 939158), (430, 469579), (473, 426890), (946, 213445), (2365, 85378), (4730, 42689)]