19226980

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{3989}}^1$

素因数の和:4239

約数の個数: 24

約数和(自身を含む): 40554360

約数和(自身を除く): 21327380

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 3989, 4820, 7978, 15956, 19945, 39890, 79780, 961349, 1922698, 3845396, 4806745, 9613490, 19226980]

約数ペア:

[(1, 19226980), (2, 9613490), (4, 4806745), (5, 3845396), (10, 1922698), (20, 961349), (241, 79780), (482, 39890), (964, 19945), (1205, 15956), (2410, 7978), (3989, 4820)]