172892360

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{81553}}^1$

素因数の和:81617

約数の個数: 32

約数和(自身を含む): 396352440

約数和(自身を除く): 223460080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 81553, 163106, 326212, 407765, 652424, 815530, 1631060, 3262120, 4322309, 8644618, 17289236, 21611545, 34578472, 43223090, 86446180, 172892360]

約数ペア:

[(1, 172892360), (2, 86446180), (4, 43223090), (5, 34578472), (8, 21611545), (10, 17289236), (20, 8644618), (40, 4322309), (53, 3262120), (106, 1631060), (212, 815530), (265, 652424), (424, 407765), (530, 326212), (1060, 163106), (2120, 81553)]