20193860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{941}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 45102960

約数和(自身を除く): 24909100

約数列:

[1, 2, 4, 5, 10, 20, 29, 37, 58, 74, 116, 145, 148, 185, 290, 370, 580, 740, 941, 1073, 1882, 2146, 3764, 4292, 4705, 5365, 9410, 10730, 18820, 21460, 27289, 34817, 54578, 69634, 109156, 136445, 139268, 174085, 272890, 348170, 545780, 696340, 1009693, 2019386, 4038772, 5048465, 10096930, 20193860]

約数ペア:

[(1, 20193860), (2, 10096930), (4, 5048465), (5, 4038772), (10, 2019386), (20, 1009693), (29, 696340), (37, 545780), (58, 348170), (74, 272890), (116, 174085), (145, 139268), (148, 136445), (185, 109156), (290, 69634), (370, 54578), (580, 34817), (740, 27289), (941, 21460), (1073, 18820), (1882, 10730), (2146, 9410), (3764, 5365), (4292, 4705)]