21066720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43889}}^1$

素因数の和:43907

約数の個数: 48

約数和(自身を含む): 66361680

約数和(自身を除く): 45294960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 43889, 87778, 131667, 175556, 219445, 263334, 351112, 438890, 526668, 658335, 702224, 877780, 1053336, 1316670, 1404448, 1755560, 2106672, 2633340, 3511120, 4213344, 5266680, 7022240, 10533360, 21066720]

約数ペア:

[(1, 21066720), (2, 10533360), (3, 7022240), (4, 5266680), (5, 4213344), (6, 3511120), (8, 2633340), (10, 2106672), (12, 1755560), (15, 1404448), (16, 1316670), (20, 1053336), (24, 877780), (30, 702224), (32, 658335), (40, 526668), (48, 438890), (60, 351112), (80, 263334), (96, 219445), (120, 175556), (160, 131667), (240, 87778), (480, 43889)]