8170280

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1301}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 18514440

約数和(自身を除く): 10344160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1301, 1570, 2602, 3140, 5204, 6280, 6505, 10408, 13010, 26020, 52040, 204257, 408514, 817028, 1021285, 1634056, 2042570, 4085140, 8170280]

約数ペア:

[(1, 8170280), (2, 4085140), (4, 2042570), (5, 1634056), (8, 1021285), (10, 817028), (20, 408514), (40, 204257), (157, 52040), (314, 26020), (628, 13010), (785, 10408), (1256, 6505), (1301, 6280), (1570, 5204), (2602, 3140)]