20261072

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 60

約数和(自身を含む): 43568640

約数和(自身を除く): 23307568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 104, 118, 127, 169, 208, 236, 254, 338, 472, 508, 676, 767, 944, 1016, 1352, 1534, 1651, 2032, 2704, 3068, 3302, 6136, 6604, 7493, 9971, 12272, 13208, 14986, 19942, 21463, 26416, 29972, 39884, 42926, 59944, 79768, 85852, 97409, 119888, 159536, 171704, 194818, 343408, 389636, 779272, 1266317, 1558544, 2532634, 5065268, 10130536, 20261072]

約数ペア:

[(1, 20261072), (2, 10130536), (4, 5065268), (8, 2532634), (13, 1558544), (16, 1266317), (26, 779272), (52, 389636), (59, 343408), (104, 194818), (118, 171704), (127, 159536), (169, 119888), (208, 97409), (236, 85852), (254, 79768), (338, 59944), (472, 42926), (508, 39884), (676, 29972), (767, 26416), (944, 21463), (1016, 19942), (1352, 14986), (1534, 13208), (1651, 12272), (2032, 9971), (2704, 7493), (3068, 6604), (3302, 6136)]