128517387625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1\times {\mathrm{2371}}^1$

素因数の和:2975

約数の個数: 64

約数和(自身を含む): 177615360000

約数和(自身を除く): 49097972375

約数列:

[1, 5, 11, 25, 55, 79, 125, 275, 395, 499, 869, 1375, 1975, 2371, 2495, 4345, 5489, 9875, 11855, 12475, 21725, 26081, 27445, 39421, 59275, 62375, 108625, 130405, 137225, 187309, 197105, 296375, 433631, 652025, 686125, 936545, 985525, 1183129, 2060399, 2168155, 3260125, 4682725, 4927625, 5915645, 10301995, 10840775, 13014419, 23413625, 29578225, 51509975, 54203875, 65072095, 93467191, 147891125, 257549875, 325360475, 467335955, 1028139101, 1626802375, 2336679775, 5140695505, 11683398875, 25703477525, 128517387625]

約数ペア:

[(1, 128517387625), (5, 25703477525), (11, 11683398875), (25, 5140695505), (55, 2336679775), (79, 1626802375), (125, 1028139101), (275, 467335955), (395, 325360475), (499, 257549875), (869, 147891125), (1375, 93467191), (1975, 65072095), (2371, 54203875), (2495, 51509975), (4345, 29578225), (5489, 23413625), (9875, 13014419), (11855, 10840775), (12475, 10301995), (21725, 5915645), (26081, 4927625), (27445, 4682725), (39421, 3260125), (59275, 2168155), (62375, 2060399), (108625, 1183129), (130405, 985525), (137225, 936545), (187309, 686125), (197105, 652025), (296375, 433631)]