20892840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4049}}^1$

素因数の和:4106

約数の個数: 64

約数和(自身を含む): 64152000

約数和(自身を除く): 43259160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 4049, 5160, 8098, 12147, 16196, 20245, 24294, 32392, 40490, 48588, 60735, 80980, 97176, 121470, 161960, 174107, 242940, 348214, 485880, 522321, 696428, 870535, 1044642, 1392856, 1741070, 2089284, 2611605, 3482140, 4178568, 5223210, 6964280, 10446420, 20892840]

約数ペア:

[(1, 20892840), (2, 10446420), (3, 6964280), (4, 5223210), (5, 4178568), (6, 3482140), (8, 2611605), (10, 2089284), (12, 1741070), (15, 1392856), (20, 1044642), (24, 870535), (30, 696428), (40, 522321), (43, 485880), (60, 348214), (86, 242940), (120, 174107), (129, 161960), (172, 121470), (215, 97176), (258, 80980), (344, 60735), (430, 48588), (516, 40490), (645, 32392), (860, 24294), (1032, 20245), (1290, 16196), (1720, 12147), (2580, 8098), (4049, 5160)]