91397240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{207721}}^1$

素因数の和:207743

約数の個数: 32

約数和(自身を含む): 224339760

約数和(自身を除く): 132942520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 207721, 415442, 830884, 1038605, 1661768, 2077210, 2284931, 4154420, 4569862, 8308840, 9139724, 11424655, 18279448, 22849310, 45698620, 91397240]

約数ペア:

[(1, 91397240), (2, 45698620), (4, 22849310), (5, 18279448), (8, 11424655), (10, 9139724), (11, 8308840), (20, 4569862), (22, 4154420), (40, 2284931), (44, 2077210), (55, 1661768), (88, 1038605), (110, 830884), (220, 415442), (440, 207721)]