127538120

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{12703}}^1$

素因数の和:12965

約数の個数: 32

約数和(自身を含む): 288126720

約数和(自身を除く): 160588600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 12703, 25406, 50812, 63515, 101624, 127030, 254060, 508120, 3188453, 6376906, 12753812, 15942265, 25507624, 31884530, 63769060, 127538120]

約数ペア:

[(1, 127538120), (2, 63769060), (4, 31884530), (5, 25507624), (8, 15942265), (10, 12753812), (20, 6376906), (40, 3188453), (251, 508120), (502, 254060), (1004, 127030), (1255, 101624), (2008, 63515), (2510, 50812), (5020, 25406), (10040, 12703)]