19281625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{379}}^1$

素因数の和:442

約数の個数: 32

約数和(自身を含む): 27031680

約数和(自身を除く): 7750055

約数列:

[1, 5, 11, 25, 37, 55, 125, 185, 275, 379, 407, 925, 1375, 1895, 2035, 4169, 4625, 9475, 10175, 14023, 20845, 47375, 50875, 70115, 104225, 154253, 350575, 521125, 771265, 1752875, 3856325, 19281625]

約数ペア:

[(1, 19281625), (5, 3856325), (11, 1752875), (25, 771265), (37, 521125), (55, 350575), (125, 154253), (185, 104225), (275, 70115), (379, 50875), (407, 47375), (925, 20845), (1375, 14023), (1895, 10175), (2035, 9475), (4169, 4625)]