78791200

素因数分解:

$2^5\times 5^2\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:830

約数の個数: 72

約数和(自身を含む): 193932900

約数和(自身を除く): 115141700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 149, 160, 200, 298, 400, 596, 661, 745, 800, 1192, 1322, 1490, 2384, 2644, 2980, 3305, 3725, 4768, 5288, 5960, 6610, 7450, 10576, 11920, 13220, 14900, 16525, 21152, 23840, 26440, 29800, 33050, 52880, 59600, 66100, 98489, 105760, 119200, 132200, 196978, 264400, 393956, 492445, 528800, 787912, 984890, 1575824, 1969780, 2462225, 3151648, 3939560, 4924450, 7879120, 9848900, 15758240, 19697800, 39395600, 78791200]

約数ペア:

[(1, 78791200), (2, 39395600), (4, 19697800), (5, 15758240), (8, 9848900), (10, 7879120), (16, 4924450), (20, 3939560), (25, 3151648), (32, 2462225), (40, 1969780), (50, 1575824), (80, 984890), (100, 787912), (149, 528800), (160, 492445), (200, 393956), (298, 264400), (400, 196978), (596, 132200), (661, 119200), (745, 105760), (800, 98489), (1192, 66100), (1322, 59600), (1490, 52880), (2384, 33050), (2644, 29800), (2980, 26440), (3305, 23840), (3725, 21152), (4768, 16525), (5288, 14900), (5960, 13220), (6610, 11920), (7450, 10576)]