25911790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:684

約数の個数: 32

約数和(自身を含む): 48600000

約数和(自身を除く): 22688210

約数列:

[1, 2, 5, 10, 29, 58, 145, 199, 290, 398, 449, 898, 995, 1990, 2245, 4490, 5771, 11542, 13021, 26042, 28855, 57710, 65105, 89351, 130210, 178702, 446755, 893510, 2591179, 5182358, 12955895, 25911790]

約数ペア:

[(1, 25911790), (2, 12955895), (5, 5182358), (10, 2591179), (29, 893510), (58, 446755), (145, 178702), (199, 130210), (290, 89351), (398, 65105), (449, 57710), (898, 28855), (995, 26042), (1990, 13021), (2245, 11542), (4490, 5771)]