20824640

素因数分解:

$2^6\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1103}}^1$

素因数の和:1179

約数の個数: 56

約数和(自身を含む): 50474880

約数和(自身を除く): 29650240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 59, 64, 80, 118, 160, 236, 295, 320, 472, 590, 944, 1103, 1180, 1888, 2206, 2360, 3776, 4412, 4720, 5515, 8824, 9440, 11030, 17648, 18880, 22060, 35296, 44120, 65077, 70592, 88240, 130154, 176480, 260308, 325385, 352960, 520616, 650770, 1041232, 1301540, 2082464, 2603080, 4164928, 5206160, 10412320, 20824640]

約数ペア:

[(1, 20824640), (2, 10412320), (4, 5206160), (5, 4164928), (8, 2603080), (10, 2082464), (16, 1301540), (20, 1041232), (32, 650770), (40, 520616), (59, 352960), (64, 325385), (80, 260308), (118, 176480), (160, 130154), (236, 88240), (295, 70592), (320, 65077), (472, 44120), (590, 35296), (944, 22060), (1103, 18880), (1180, 17648), (1888, 11030), (2206, 9440), (2360, 8824), (3776, 5515), (4412, 4720)]