31705020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19571}}^1$

素因数の和:19592

約数の個数: 60

約数和(自身を含む): 99464904

約数和(自身を除く): 67759884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 19571, 39142, 58713, 78284, 97855, 117426, 176139, 195710, 234852, 293565, 352278, 391420, 528417, 587130, 704556, 880695, 1056834, 1174260, 1585251, 1761390, 2113668, 2642085, 3170502, 3522780, 5284170, 6341004, 7926255, 10568340, 15852510, 31705020]

約数ペア:

[(1, 31705020), (2, 15852510), (3, 10568340), (4, 7926255), (5, 6341004), (6, 5284170), (9, 3522780), (10, 3170502), (12, 2642085), (15, 2113668), (18, 1761390), (20, 1585251), (27, 1174260), (30, 1056834), (36, 880695), (45, 704556), (54, 587130), (60, 528417), (81, 391420), (90, 352278), (108, 293565), (135, 234852), (162, 195710), (180, 176139), (270, 117426), (324, 97855), (405, 78284), (540, 58713), (810, 39142), (1620, 19571)]