80481640

素因数分解:

$2^3\times 5^1\times {\mathrm{599}}^1\times {\mathrm{3359}}^1$

素因数の和:3969

約数の個数: 32

約数和(自身を含む): 181440000

約数和(自身を除く): 100958360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 599, 1198, 2396, 2995, 3359, 4792, 5990, 6718, 11980, 13436, 16795, 23960, 26872, 33590, 67180, 134360, 2012041, 4024082, 8048164, 10060205, 16096328, 20120410, 40240820, 80481640]

約数ペア:

[(1, 80481640), (2, 40240820), (4, 20120410), (5, 16096328), (8, 10060205), (10, 8048164), (20, 4024082), (40, 2012041), (599, 134360), (1198, 67180), (2396, 33590), (2995, 26872), (3359, 23960), (4792, 16795), (5990, 13436), (6718, 11980)]