131554120

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{13103}}^1$

素因数の和:13365

約数の個数: 32

約数和(自身を含む): 297198720

約数和(自身を除く): 165644600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 13103, 26206, 52412, 65515, 104824, 131030, 262060, 524120, 3288853, 6577706, 13155412, 16444265, 26310824, 32888530, 65777060, 131554120]

約数ペア:

[(1, 131554120), (2, 65777060), (4, 32888530), (5, 26310824), (8, 16444265), (10, 13155412), (20, 6577706), (40, 3288853), (251, 524120), (502, 262060), (1004, 131030), (1255, 104824), (2008, 65515), (2510, 52412), (5020, 26206), (10040, 13103)]