123721310

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{399101}}^1$

素因数の和:399139

約数の個数: 16

約数和(自身を含む): 229882752

約数和(自身を除く): 106161442

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 399101, 798202, 1995505, 3991010, 12372131, 24744262, 61860655, 123721310]

約数ペア:

[(1, 123721310), (2, 61860655), (5, 24744262), (10, 12372131), (31, 3991010), (62, 1995505), (155, 798202), (310, 399101)]