68980400

素因数分解:

$2^4\times 5^2\times {\mathrm{331}}^1\times {\mathrm{521}}^1$

素因数の和:870

約数の個数: 60

約数和(自身を含む): 166545144

約数和(自身を除く): 97564744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 331, 400, 521, 662, 1042, 1324, 1655, 2084, 2605, 2648, 3310, 4168, 5210, 5296, 6620, 8275, 8336, 10420, 13025, 13240, 16550, 20840, 26050, 26480, 33100, 41680, 52100, 66200, 104200, 132400, 172451, 208400, 344902, 689804, 862255, 1379608, 1724510, 2759216, 3449020, 4311275, 6898040, 8622550, 13796080, 17245100, 34490200, 68980400]

約数ペア:

[(1, 68980400), (2, 34490200), (4, 17245100), (5, 13796080), (8, 8622550), (10, 6898040), (16, 4311275), (20, 3449020), (25, 2759216), (40, 1724510), (50, 1379608), (80, 862255), (100, 689804), (200, 344902), (331, 208400), (400, 172451), (521, 132400), (662, 104200), (1042, 66200), (1324, 52100), (1655, 41680), (2084, 33100), (2605, 26480), (2648, 26050), (3310, 20840), (4168, 16550), (5210, 13240), (5296, 13025), (6620, 10420), (8275, 8336)]