17912420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 39287808

約数和(自身を除く): 21375388

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 167, 173, 310, 334, 346, 620, 668, 692, 835, 865, 1670, 1730, 3340, 3460, 5177, 5363, 10354, 10726, 20708, 21452, 25885, 26815, 28891, 51770, 53630, 57782, 103540, 107260, 115564, 144455, 288910, 577820, 895621, 1791242, 3582484, 4478105, 8956210, 17912420]

約数ペア:

[(1, 17912420), (2, 8956210), (4, 4478105), (5, 3582484), (10, 1791242), (20, 895621), (31, 577820), (62, 288910), (124, 144455), (155, 115564), (167, 107260), (173, 103540), (310, 57782), (334, 53630), (346, 51770), (620, 28891), (668, 26815), (692, 25885), (835, 21452), (865, 20708), (1670, 10726), (1730, 10354), (3340, 5363), (3460, 5177)]