68986840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{132667}}^1$

素因数の和:132691

約数の個数: 32

約数和(自身を含む): 167161680

約数和(自身を除く): 98174840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 132667, 265334, 530668, 663335, 1061336, 1326670, 1724671, 2653340, 3449342, 5306680, 6898684, 8623355, 13797368, 17246710, 34493420, 68986840]

約数ペア:

[(1, 68986840), (2, 34493420), (4, 17246710), (5, 13797368), (8, 8623355), (10, 6898684), (13, 5306680), (20, 3449342), (26, 2653340), (40, 1724671), (52, 1326670), (65, 1061336), (104, 663335), (130, 530668), (260, 265334), (520, 132667)]