138146440

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{19081}}^1$

素因数の和:19273

約数の個数: 32

約数和(自身を含む): 312563160

約数和(自身を除く): 174416720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 19081, 38162, 76324, 95405, 152648, 190810, 381620, 763240, 3453661, 6907322, 13814644, 17268305, 27629288, 34536610, 69073220, 138146440]

約数ペア:

[(1, 138146440), (2, 69073220), (4, 34536610), (5, 27629288), (8, 17268305), (10, 13814644), (20, 6907322), (40, 3453661), (181, 763240), (362, 381620), (724, 190810), (905, 152648), (1448, 95405), (1810, 76324), (3620, 38162), (7240, 19081)]