20216918875

素因数分解:

$5^3\times {\mathrm{131}}^1\times {\mathrm{193}}^1\times {\mathrm{6397}}^1$

素因数の和:6736

約数の個数: 32

約数和(自身を含む): 25559037504

約数和(自身を除く): 5342118629

約数列:

[1, 5, 25, 125, 131, 193, 655, 965, 3275, 4825, 6397, 16375, 24125, 25283, 31985, 126415, 159925, 632075, 799625, 838007, 1234621, 3160375, 4190035, 6173105, 20950175, 30865525, 104750875, 154327625, 161735351, 808676755, 4043383775, 20216918875]

約数ペア:

[(1, 20216918875), (5, 4043383775), (25, 808676755), (125, 161735351), (131, 154327625), (193, 104750875), (655, 30865525), (965, 20950175), (3275, 6173105), (4825, 4190035), (6397, 3160375), (16375, 1234621), (24125, 838007), (25283, 799625), (31985, 632075), (126415, 159925)]