221577980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{29387}}^1$

素因数の和:29438

約数の個数: 48

約数和(自身を含む): 518404320

約数和(自身を除く): 296826340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 29387, 58774, 117548, 146935, 293870, 382031, 587740, 764062, 852223, 1528124, 1704446, 1910155, 3408892, 3820310, 4261115, 7640620, 8522230, 11078899, 17044460, 22157798, 44315596, 55394495, 110788990, 221577980]

約数ペア:

[(1, 221577980), (2, 110788990), (4, 55394495), (5, 44315596), (10, 22157798), (13, 17044460), (20, 11078899), (26, 8522230), (29, 7640620), (52, 4261115), (58, 3820310), (65, 3408892), (116, 1910155), (130, 1704446), (145, 1528124), (260, 852223), (290, 764062), (377, 587740), (580, 382031), (754, 293870), (1508, 146935), (1885, 117548), (3770, 58774), (7540, 29387)]