19416620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12289}}^1$

素因数の和:12377

約数の個数: 24

約数和(自身を含む): 41294400

約数和(自身を除く): 21877780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12289, 24578, 49156, 61445, 122890, 245780, 970831, 1941662, 3883324, 4854155, 9708310, 19416620]

約数ペア:

[(1, 19416620), (2, 9708310), (4, 4854155), (5, 3883324), (10, 1941662), (20, 970831), (79, 245780), (158, 122890), (316, 61445), (395, 49156), (790, 24578), (1580, 12289)]