42888890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20521}}^1$

素因数の和:20558

約数の個数: 32

約数和(自身を含む): 88655040

約数和(自身を除く): 45766150

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 20521, 41042, 102605, 205210, 225731, 389899, 451462, 779798, 1128655, 1949495, 2257310, 3898990, 4288889, 8577778, 21444445, 42888890]

約数ペア:

[(1, 42888890), (2, 21444445), (5, 8577778), (10, 4288889), (11, 3898990), (19, 2257310), (22, 1949495), (38, 1128655), (55, 779798), (95, 451462), (110, 389899), (190, 225731), (209, 205210), (418, 102605), (1045, 41042), (2090, 20521)]