86778890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41521}}^1$

素因数の和:41558

約数の個数: 32

約数和(自身を含む): 179375040

約数和(自身を除く): 92596150

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 41521, 83042, 207605, 415210, 456731, 788899, 913462, 1577798, 2283655, 3944495, 4567310, 7888990, 8677889, 17355778, 43389445, 86778890]

約数ペア:

[(1, 86778890), (2, 43389445), (5, 17355778), (10, 8677889), (11, 7888990), (19, 4567310), (22, 3944495), (38, 2283655), (55, 1577798), (95, 913462), (110, 788899), (190, 456731), (209, 415210), (418, 207605), (1045, 83042), (2090, 41521)]