20087588180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8081}}^1\times {\mathrm{11299}}^1$

素因数の和:19400

約数の個数: 48

約数和(自身を含む): 46028606400

約数和(自身を除く): 25941018220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 8081, 11299, 16162, 22598, 32324, 40405, 45196, 56495, 80810, 88891, 112990, 124289, 161620, 177782, 225980, 248578, 355564, 444455, 497156, 621445, 888910, 1242890, 1777820, 2485780, 91307219, 182614438, 365228876, 456536095, 913072190, 1004379409, 1826144380, 2008758818, 4017517636, 5021897045, 10043794090, 20087588180]

約数ペア:

[(1, 20087588180), (2, 10043794090), (4, 5021897045), (5, 4017517636), (10, 2008758818), (11, 1826144380), (20, 1004379409), (22, 913072190), (44, 456536095), (55, 365228876), (110, 182614438), (220, 91307219), (8081, 2485780), (11299, 1777820), (16162, 1242890), (22598, 888910), (32324, 621445), (40405, 497156), (45196, 444455), (56495, 355564), (80810, 248578), (88891, 225980), (112990, 177782), (124289, 161620)]