261722216

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{161159}}^1$

素因数の和:161201

約数の個数: 32

約数和(自身を含む): 580176000

約数和(自身を除く): 318453784

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 161159, 322318, 644636, 1128113, 1289272, 2256226, 4512452, 4673611, 9024904, 9347222, 18694444, 32715277, 37388888, 65430554, 130861108, 261722216]

約数ペア:

[(1, 261722216), (2, 130861108), (4, 65430554), (7, 37388888), (8, 32715277), (14, 18694444), (28, 9347222), (29, 9024904), (56, 4673611), (58, 4512452), (116, 2256226), (203, 1289272), (232, 1128113), (406, 644636), (812, 322318), (1624, 161159)]