20094880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9661}}^1$

素因数の和:9689

約数の個数: 48

約数和(自身を含む): 51131304

約数和(自身を除く): 31036424

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9661, 19322, 38644, 48305, 77288, 96610, 125593, 154576, 193220, 251186, 309152, 386440, 502372, 627965, 772880, 1004744, 1255930, 1545760, 2009488, 2511860, 4018976, 5023720, 10047440, 20094880]

約数ペア:

[(1, 20094880), (2, 10047440), (4, 5023720), (5, 4018976), (8, 2511860), (10, 2009488), (13, 1545760), (16, 1255930), (20, 1004744), (26, 772880), (32, 627965), (40, 502372), (52, 386440), (65, 309152), (80, 251186), (104, 193220), (130, 154576), (160, 125593), (208, 96610), (260, 77288), (416, 48305), (520, 38644), (1040, 19322), (2080, 9661)]