259394821

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{617}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 326304000

約数和(自身を除く): 66909179

約数列:

[1, 7, 19, 29, 109, 133, 203, 551, 617, 763, 2071, 3161, 3857, 4319, 11723, 14497, 17893, 22127, 60059, 67253, 82061, 125251, 339967, 420413, 470771, 1277807, 1950337, 2379769, 8944649, 13652359, 37056403, 259394821]

約数ペア:

[(1, 259394821), (7, 37056403), (19, 13652359), (29, 8944649), (109, 2379769), (133, 1950337), (203, 1277807), (551, 470771), (617, 420413), (763, 339967), (2071, 125251), (3161, 82061), (3857, 67253), (4319, 60059), (11723, 22127), (14497, 17893)]