81421970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{3037}}^1$

素因数の和:3434

約数の個数: 32

約数和(自身を含む): 167989248

約数和(自身を除く): 86567278

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 383, 766, 1915, 2681, 3037, 3830, 5362, 6074, 13405, 15185, 21259, 26810, 30370, 42518, 106295, 212590, 1163171, 2326342, 5815855, 8142197, 11631710, 16284394, 40710985, 81421970]

約数ペア:

[(1, 81421970), (2, 40710985), (5, 16284394), (7, 11631710), (10, 8142197), (14, 5815855), (35, 2326342), (70, 1163171), (383, 212590), (766, 106295), (1915, 42518), (2681, 30370), (3037, 26810), (3830, 21259), (5362, 15185), (6074, 13405)]