81203798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 142040304

約数和(自身を除く): 60836506

約数列:

[1, 2, 13, 17, 26, 34, 101, 107, 202, 214, 221, 289, 442, 578, 1313, 1391, 1717, 1819, 2626, 2782, 3434, 3638, 3757, 7514, 10807, 21614, 22321, 23647, 29189, 30923, 44642, 47294, 58378, 61846, 140491, 183719, 280982, 367438, 379457, 401999, 758914, 803998, 2388347, 3123223, 4776694, 6246446, 40601899, 81203798]

約数ペア:

[(1, 81203798), (2, 40601899), (13, 6246446), (17, 4776694), (26, 3123223), (34, 2388347), (101, 803998), (107, 758914), (202, 401999), (214, 379457), (221, 367438), (289, 280982), (442, 183719), (578, 140491), (1313, 61846), (1391, 58378), (1717, 47294), (1819, 44642), (2626, 30923), (2782, 29189), (3434, 23647), (3638, 22321), (3757, 21614), (7514, 10807)]