1800000025

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{193}}^1\times {\mathrm{6323}}^1$

素因数の和:6585

約数の個数: 24

約数和(自身を含む): 2281952160

約数和(自身を除く): 481952135

約数列:

[1, 5, 25, 59, 193, 295, 965, 1475, 4825, 6323, 11387, 31615, 56935, 158075, 284675, 373057, 1220339, 1865285, 6101695, 9326425, 30508475, 72000001, 360000005, 1800000025]

約数ペア:

[(1, 1800000025), (5, 360000005), (25, 72000001), (59, 30508475), (193, 9326425), (295, 6101695), (965, 1865285), (1475, 1220339), (4825, 373057), (6323, 284675), (11387, 158075), (31615, 56935)]