20597512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 23754488

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 79, 92, 104, 109, 158, 184, 218, 299, 316, 436, 598, 632, 872, 1027, 1196, 1417, 1817, 2054, 2392, 2507, 2834, 3634, 4108, 5014, 5668, 7268, 8216, 8611, 10028, 11336, 14536, 17222, 20056, 23621, 32591, 34444, 47242, 65182, 68888, 94484, 111943, 130364, 188968, 198053, 223886, 260728, 396106, 447772, 792212, 895544, 1584424, 2574689, 5149378, 10298756, 20597512]

約数ペア:

[(1, 20597512), (2, 10298756), (4, 5149378), (8, 2574689), (13, 1584424), (23, 895544), (26, 792212), (46, 447772), (52, 396106), (79, 260728), (92, 223886), (104, 198053), (109, 188968), (158, 130364), (184, 111943), (218, 94484), (299, 68888), (316, 65182), (436, 47242), (598, 34444), (632, 32591), (872, 23621), (1027, 20056), (1196, 17222), (1417, 14536), (1817, 11336), (2054, 10028), (2392, 8611), (2507, 8216), (2834, 7268), (3634, 5668), (4108, 5014)]