7861820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1217}}^1$

素因数の和:1262

約数の個数: 48

約数和(自身を含む): 18416160

約数和(自身を除く): 10554340

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 646, 1217, 1292, 1615, 2434, 3230, 4868, 6085, 6460, 12170, 20689, 23123, 24340, 41378, 46246, 82756, 92492, 103445, 115615, 206890, 231230, 393091, 413780, 462460, 786182, 1572364, 1965455, 3930910, 7861820]

約数ペア:

[(1, 7861820), (2, 3930910), (4, 1965455), (5, 1572364), (10, 786182), (17, 462460), (19, 413780), (20, 393091), (34, 231230), (38, 206890), (68, 115615), (76, 103445), (85, 92492), (95, 82756), (170, 46246), (190, 41378), (323, 24340), (340, 23123), (380, 20689), (646, 12170), (1217, 6460), (1292, 6085), (1615, 4868), (2434, 3230)]