31008520

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4481}}^1$

素因数の和:4665

約数の個数: 32

約数和(自身を含む): 70188120

約数和(自身を除く): 39179600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 4481, 6920, 8962, 17924, 22405, 35848, 44810, 89620, 179240, 775213, 1550426, 3100852, 3876065, 6201704, 7752130, 15504260, 31008520]

約数ペア:

[(1, 31008520), (2, 15504260), (4, 7752130), (5, 6201704), (8, 3876065), (10, 3100852), (20, 1550426), (40, 775213), (173, 179240), (346, 89620), (692, 44810), (865, 35848), (1384, 22405), (1730, 17924), (3460, 8962), (4481, 6920)]