15956815

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 23040000

約数和(自身を除く): 7083185

約数列:

[1, 5, 7, 29, 35, 79, 145, 199, 203, 395, 553, 995, 1015, 1393, 2291, 2765, 5771, 6965, 11455, 15721, 16037, 28855, 40397, 78605, 80185, 110047, 201985, 455909, 550235, 2279545, 3191363, 15956815]

約数ペア:

[(1, 15956815), (5, 3191363), (7, 2279545), (29, 550235), (35, 455909), (79, 201985), (145, 110047), (199, 80185), (203, 78605), (395, 40397), (553, 28855), (995, 16037), (1015, 15721), (1393, 11455), (2291, 6965), (2765, 5771)]