209304920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{475693}}^1$

素因数の和:475715

約数の個数: 32

約数和(自身を含む): 513749520

約数和(自身を除く): 304444600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 475693, 951386, 1902772, 2378465, 3805544, 4756930, 5232623, 9513860, 10465246, 19027720, 20930492, 26163115, 41860984, 52326230, 104652460, 209304920]

約数ペア:

[(1, 209304920), (2, 104652460), (4, 52326230), (5, 41860984), (8, 26163115), (10, 20930492), (11, 19027720), (20, 10465246), (22, 9513860), (40, 5232623), (44, 4756930), (55, 3805544), (88, 2378465), (110, 1902772), (220, 951386), (440, 475693)]