3994240

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^2$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 9671130

約数和(自身を除く): 5676890

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 790, 1264, 1580, 2528, 3160, 5056, 6241, 6320, 10112, 12482, 12640, 24964, 25280, 31205, 49928, 50560, 62410, 99856, 124820, 199712, 249640, 399424, 499280, 798848, 998560, 1997120, 3994240]

約数ペア:

[(1, 3994240), (2, 1997120), (4, 998560), (5, 798848), (8, 499280), (10, 399424), (16, 249640), (20, 199712), (32, 124820), (40, 99856), (64, 62410), (79, 50560), (80, 49928), (128, 31205), (158, 25280), (160, 24964), (316, 12640), (320, 12482), (395, 10112), (632, 6320), (640, 6241), (790, 5056), (1264, 3160), (1580, 2528)]