20441200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3931}}^1$

素因数の和:3962

約数の個数: 60

約数和(自身を含む): 52901128

約数和(自身を除く): 32459928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 3931, 5200, 7862, 15724, 19655, 31448, 39310, 51103, 62896, 78620, 98275, 102206, 157240, 196550, 204412, 255515, 314480, 393100, 408824, 511030, 786200, 817648, 1022060, 1277575, 1572400, 2044120, 2555150, 4088240, 5110300, 10220600, 20441200]

約数ペア:

[(1, 20441200), (2, 10220600), (4, 5110300), (5, 4088240), (8, 2555150), (10, 2044120), (13, 1572400), (16, 1277575), (20, 1022060), (25, 817648), (26, 786200), (40, 511030), (50, 408824), (52, 393100), (65, 314480), (80, 255515), (100, 204412), (104, 196550), (130, 157240), (200, 102206), (208, 98275), (260, 78620), (325, 62896), (400, 51103), (520, 39310), (650, 31448), (1040, 19655), (1300, 15724), (2600, 7862), (3931, 5200)]