65917820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{761}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 142865856

約数和(自身を除く): 76948036

約数列:

[1, 2, 4, 5, 10, 20, 61, 71, 122, 142, 244, 284, 305, 355, 610, 710, 761, 1220, 1420, 1522, 3044, 3805, 4331, 7610, 8662, 15220, 17324, 21655, 43310, 46421, 54031, 86620, 92842, 108062, 185684, 216124, 232105, 270155, 464210, 540310, 928420, 1080620, 3295891, 6591782, 13183564, 16479455, 32958910, 65917820]

約数ペア:

[(1, 65917820), (2, 32958910), (4, 16479455), (5, 13183564), (10, 6591782), (20, 3295891), (61, 1080620), (71, 928420), (122, 540310), (142, 464210), (244, 270155), (284, 232105), (305, 216124), (355, 185684), (610, 108062), (710, 92842), (761, 86620), (1220, 54031), (1420, 46421), (1522, 43310), (3044, 21655), (3805, 17324), (4331, 15220), (7610, 8662)]