20900360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40193}}^1$

素因数の和:40217

約数の個数: 32

約数和(自身を含む): 50644440

約数和(自身を除く): 29744080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 40193, 80386, 160772, 200965, 321544, 401930, 522509, 803860, 1045018, 1607720, 2090036, 2612545, 4180072, 5225090, 10450180, 20900360]

約数ペア:

[(1, 20900360), (2, 10450180), (4, 5225090), (5, 4180072), (8, 2612545), (10, 2090036), (13, 1607720), (20, 1045018), (26, 803860), (40, 522509), (52, 401930), (65, 321544), (104, 200965), (130, 160772), (260, 80386), (520, 40193)]