22122640

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:224

約数の個数: 80

約数和(自身を含む): 54014400

約数和(自身を除く): 31891760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 59, 80, 86, 109, 118, 172, 215, 218, 236, 295, 344, 430, 436, 472, 545, 590, 688, 860, 872, 944, 1090, 1180, 1720, 1744, 2180, 2360, 2537, 3440, 4360, 4687, 4720, 5074, 6431, 8720, 9374, 10148, 12685, 12862, 18748, 20296, 23435, 25370, 25724, 32155, 37496, 40592, 46870, 50740, 51448, 64310, 74992, 93740, 101480, 102896, 128620, 187480, 202960, 257240, 276533, 374960, 514480, 553066, 1106132, 1382665, 2212264, 2765330, 4424528, 5530660, 11061320, 22122640]

約数ペア:

[(1, 22122640), (2, 11061320), (4, 5530660), (5, 4424528), (8, 2765330), (10, 2212264), (16, 1382665), (20, 1106132), (40, 553066), (43, 514480), (59, 374960), (80, 276533), (86, 257240), (109, 202960), (118, 187480), (172, 128620), (215, 102896), (218, 101480), (236, 93740), (295, 74992), (344, 64310), (430, 51448), (436, 50740), (472, 46870), (545, 40592), (590, 37496), (688, 32155), (860, 25724), (872, 25370), (944, 23435), (1090, 20296), (1180, 18748), (1720, 12862), (1744, 12685), (2180, 10148), (2360, 9374), (2537, 8720), (3440, 6431), (4360, 5074), (4687, 4720)]