20129423908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{49261}}^1$

素因数の和:49564

約数の個数: 48

約数和(自身を含む): 39625564608

約数和(自身を除く): 19496140700

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 251, 407, 502, 814, 1004, 1628, 2761, 5522, 9287, 11044, 18574, 37148, 49261, 98522, 102157, 197044, 204314, 408628, 541871, 1083742, 1822657, 2167484, 3645314, 7290628, 12364511, 20049227, 24729022, 40098454, 49458044, 80196908, 136009621, 272019242, 457486907, 544038484, 914973814, 1829947628, 5032355977, 10064711954, 20129423908]

約数ペア:

[(1, 20129423908), (2, 10064711954), (4, 5032355977), (11, 1829947628), (22, 914973814), (37, 544038484), (44, 457486907), (74, 272019242), (148, 136009621), (251, 80196908), (407, 49458044), (502, 40098454), (814, 24729022), (1004, 20049227), (1628, 12364511), (2761, 7290628), (5522, 3645314), (9287, 2167484), (11044, 1822657), (18574, 1083742), (37148, 541871), (49261, 408628), (98522, 204314), (102157, 197044)]