13305784540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1\times {\mathrm{25997}}^1$

素因数の和:26326

約数の個数: 48

約数和(自身を含む): 28293727392

約数和(自身を除く): 14987942852

約数列:

[1, 2, 4, 5, 10, 20, 157, 163, 314, 326, 628, 652, 785, 815, 1570, 1630, 3140, 3260, 25591, 25997, 51182, 51994, 102364, 103988, 127955, 129985, 255910, 259970, 511820, 519940, 4081529, 4237511, 8163058, 8475022, 16326116, 16950044, 20407645, 21187555, 40815290, 42375110, 81630580, 84750220, 665289227, 1330578454, 2661156908, 3326446135, 6652892270, 13305784540]

約数ペア:

[(1, 13305784540), (2, 6652892270), (4, 3326446135), (5, 2661156908), (10, 1330578454), (20, 665289227), (157, 84750220), (163, 81630580), (314, 42375110), (326, 40815290), (628, 21187555), (652, 20407645), (785, 16950044), (815, 16326116), (1570, 8475022), (1630, 8163058), (3140, 4237511), (3260, 4081529), (25591, 519940), (25997, 511820), (51182, 259970), (51994, 255910), (102364, 129985), (103988, 127955)]