123257240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{99401}}^1$

素因数の和:99443

約数の個数: 32

約数和(自身を含む): 286277760

約数和(自身を除く): 163020520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 99401, 198802, 397604, 497005, 795208, 994010, 1988020, 3081431, 3976040, 6162862, 12325724, 15407155, 24651448, 30814310, 61628620, 123257240]

約数ペア:

[(1, 123257240), (2, 61628620), (4, 30814310), (5, 24651448), (8, 15407155), (10, 12325724), (20, 6162862), (31, 3976040), (40, 3081431), (62, 1988020), (124, 994010), (155, 795208), (248, 497005), (310, 397604), (620, 198802), (1240, 99401)]