31723240

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{10039}}^1$

素因数の和:10129

約数の個数: 32

約数和(自身を含む): 72288000

約数和(自身を除く): 40564760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 10039, 20078, 40156, 50195, 80312, 100390, 200780, 401560, 793081, 1586162, 3172324, 3965405, 6344648, 7930810, 15861620, 31723240]

約数ペア:

[(1, 31723240), (2, 15861620), (4, 7930810), (5, 6344648), (8, 3965405), (10, 3172324), (20, 1586162), (40, 793081), (79, 401560), (158, 200780), (316, 100390), (395, 80312), (632, 50195), (790, 40156), (1580, 20078), (3160, 10039)]