57439240

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3581}}^1$

素因数の和:3993

約数の個数: 32

約数和(自身を含む): 129596760

約数和(自身を除く): 72157520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 3581, 4010, 7162, 8020, 14324, 16040, 17905, 28648, 35810, 71620, 143240, 1435981, 2871962, 5743924, 7179905, 11487848, 14359810, 28719620, 57439240]

約数ペア:

[(1, 57439240), (2, 28719620), (4, 14359810), (5, 11487848), (8, 7179905), (10, 5743924), (20, 2871962), (40, 1435981), (401, 143240), (802, 71620), (1604, 35810), (2005, 28648), (3208, 17905), (3581, 16040), (4010, 14324), (7162, 8020)]