72989680

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11549}}^1$

素因数の和:11641

約数の個数: 40

約数和(自身を含む): 171864000

約数和(自身を除く): 98874320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 11549, 23098, 46196, 57745, 92392, 115490, 184784, 230980, 461960, 912371, 923920, 1824742, 3649484, 4561855, 7298968, 9123710, 14597936, 18247420, 36494840, 72989680]

約数ペア:

[(1, 72989680), (2, 36494840), (4, 18247420), (5, 14597936), (8, 9123710), (10, 7298968), (16, 4561855), (20, 3649484), (40, 1824742), (79, 923920), (80, 912371), (158, 461960), (316, 230980), (395, 184784), (632, 115490), (790, 92392), (1264, 57745), (1580, 46196), (3160, 23098), (6320, 11549)]