8355040

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:755

約数の個数: 48

約数和(自身を含む): 20018880

約数和(自身を除く): 11663840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 661, 790, 1264, 1322, 1580, 2528, 2644, 3160, 3305, 5288, 6320, 6610, 10576, 12640, 13220, 21152, 26440, 52219, 52880, 104438, 105760, 208876, 261095, 417752, 522190, 835504, 1044380, 1671008, 2088760, 4177520, 8355040]

約数ペア:

[(1, 8355040), (2, 4177520), (4, 2088760), (5, 1671008), (8, 1044380), (10, 835504), (16, 522190), (20, 417752), (32, 261095), (40, 208876), (79, 105760), (80, 104438), (158, 52880), (160, 52219), (316, 26440), (395, 21152), (632, 13220), (661, 12640), (790, 10576), (1264, 6610), (1322, 6320), (1580, 5288), (2528, 3305), (2644, 3160)]