81688984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{5003}}^1$

素因数の和:5179

約数の個数: 32

約数和(自身を含む): 166032720

約数和(自身を除く): 84343736

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 314, 628, 1256, 2041, 4082, 5003, 8164, 10006, 16328, 20012, 40024, 65039, 130078, 260156, 520312, 785471, 1570942, 3141884, 6283768, 10211123, 20422246, 40844492, 81688984]

約数ペア:

[(1, 81688984), (2, 40844492), (4, 20422246), (8, 10211123), (13, 6283768), (26, 3141884), (52, 1570942), (104, 785471), (157, 520312), (314, 260156), (628, 130078), (1256, 65039), (2041, 40024), (4082, 20012), (5003, 16328), (8164, 10006)]