64958540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{41113}}^1$

素因数の和:41201

約数の個数: 24

約数和(自身を含む): 138143040

約数和(自身を除く): 73184500

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 41113, 82226, 164452, 205565, 411130, 822260, 3247927, 6495854, 12991708, 16239635, 32479270, 64958540]

約数ペア:

[(1, 64958540), (2, 32479270), (4, 16239635), (5, 12991708), (10, 6495854), (20, 3247927), (79, 822260), (158, 411130), (316, 205565), (395, 164452), (790, 82226), (1580, 41113)]