30809140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{15881}}^1$

素因数の和:15987

約数の個数: 24

約数和(自身を含む): 65370312

約数和(自身を除く): 34561172

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 15881, 31762, 63524, 79405, 158810, 317620, 1540457, 3080914, 6161828, 7702285, 15404570, 30809140]

約数ペア:

[(1, 30809140), (2, 15404570), (4, 7702285), (5, 6161828), (10, 3080914), (20, 1540457), (97, 317620), (194, 158810), (388, 79405), (485, 63524), (970, 31762), (1940, 15881)]