20380147240

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9613277}}^1$

素因数の和:9613341

約数の個数: 32

約数和(自身を含む): 46720531080

約数和(自身を除く): 26340383840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9613277, 19226554, 38453108, 48066385, 76906216, 96132770, 192265540, 384531080, 509503681, 1019007362, 2038014724, 2547518405, 4076029448, 5095036810, 10190073620, 20380147240]

約数ペア:

[(1, 20380147240), (2, 10190073620), (4, 5095036810), (5, 4076029448), (8, 2547518405), (10, 2038014724), (20, 1019007362), (40, 509503681), (53, 384531080), (106, 192265540), (212, 96132770), (265, 76906216), (424, 48066385), (530, 38453108), (1060, 19226554), (2120, 9613277)]