20469720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3967}}^1$

素因数の和:4024

約数の個数: 64

約数和(自身を含む): 62853120

約数和(自身を除く): 42383400

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, 3967, 5160, 7934, 11901, 15868, 19835, 23802, 31736, 39670, 47604, 59505, 79340, 95208, 119010, 158680, 170581, 238020, 341162, 476040, 511743, 682324, 852905, 1023486, 1364648, 1705810, 2046972, 2558715, 3411620, 4093944, 5117430, 6823240, 10234860, 20469720]

約数ペア:

[(1, 20469720), (2, 10234860), (3, 6823240), (4, 5117430), (5, 4093944), (6, 3411620), (8, 2558715), (10, 2046972), (12, 1705810), (15, 1364648), (20, 1023486), (24, 852905), (30, 682324), (40, 511743), (43, 476040), (60, 341162), (86, 238020), (120, 170581), (129, 158680), (172, 119010), (215, 95208), (258, 79340), (344, 59505), (430, 47604), (516, 39670), (645, 31736), (860, 23802), (1032, 19835), (1290, 15868), (1720, 11901), (2580, 7934), (3967, 5160)]