20366520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3947}}^1$

素因数の和:4004

約数の個数: 64

約数和(自身を含む): 62536320

約数和(自身を除く): 42169800

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, 3947, 5160, 7894, 11841, 15788, 19735, 23682, 31576, 39470, 47364, 59205, 78940, 94728, 118410, 157880, 169721, 236820, 339442, 473640, 509163, 678884, 848605, 1018326, 1357768, 1697210, 2036652, 2545815, 3394420, 4073304, 5091630, 6788840, 10183260, 20366520]

約数ペア:

[(1, 20366520), (2, 10183260), (3, 6788840), (4, 5091630), (5, 4073304), (6, 3394420), (8, 2545815), (10, 2036652), (12, 1697210), (15, 1357768), (20, 1018326), (24, 848605), (30, 678884), (40, 509163), (43, 473640), (60, 339442), (86, 236820), (120, 169721), (129, 157880), (172, 118410), (215, 94728), (258, 78940), (344, 59205), (430, 47364), (516, 39470), (645, 31576), (860, 23682), (1032, 19735), (1290, 15788), (1720, 11841), (2580, 7894), (3947, 5160)]