20451860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7151}}^1$

素因数の和:7184

約数の個数: 48

約数和(自身を含む): 50464512

約数和(自身を除く): 30012652

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7151, 14302, 28604, 35755, 71510, 78661, 92963, 143020, 157322, 185926, 314644, 371852, 393305, 464815, 786610, 929630, 1022593, 1573220, 1859260, 2045186, 4090372, 5112965, 10225930, 20451860]

約数ペア:

[(1, 20451860), (2, 10225930), (4, 5112965), (5, 4090372), (10, 2045186), (11, 1859260), (13, 1573220), (20, 1022593), (22, 929630), (26, 786610), (44, 464815), (52, 393305), (55, 371852), (65, 314644), (110, 185926), (130, 157322), (143, 143020), (220, 92963), (260, 78661), (286, 71510), (572, 35755), (715, 28604), (1430, 14302), (2860, 7151)]