19479875

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:224

約数の個数: 32

約数和(自身を含む): 26282880

約数和(自身を除く): 6803005

約数列:

[1, 5, 17, 25, 85, 89, 103, 125, 425, 445, 515, 1513, 1751, 2125, 2225, 2575, 7565, 8755, 9167, 11125, 12875, 37825, 43775, 45835, 155839, 189125, 218875, 229175, 779195, 1145875, 3895975, 19479875]

約数ペア:

[(1, 19479875), (5, 3895975), (17, 1145875), (25, 779195), (85, 229175), (89, 218875), (103, 189125), (125, 155839), (425, 45835), (445, 43775), (515, 37825), (1513, 12875), (1751, 11125), (2125, 9167), (2225, 8755), (2575, 7565)]