80610040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1291}}^1$

素因数の和:1532

約数の個数: 64

約数和(自身を含む): 208373760

約数和(自身を除く): 127763720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 223, 280, 446, 892, 1115, 1291, 1561, 1784, 2230, 2582, 3122, 4460, 5164, 6244, 6455, 7805, 8920, 9037, 10328, 12488, 12910, 15610, 18074, 25820, 31220, 36148, 45185, 51640, 62440, 72296, 90370, 180740, 287893, 361480, 575786, 1151572, 1439465, 2015251, 2303144, 2878930, 4030502, 5757860, 8061004, 10076255, 11515720, 16122008, 20152510, 40305020, 80610040]

約数ペア:

[(1, 80610040), (2, 40305020), (4, 20152510), (5, 16122008), (7, 11515720), (8, 10076255), (10, 8061004), (14, 5757860), (20, 4030502), (28, 2878930), (35, 2303144), (40, 2015251), (56, 1439465), (70, 1151572), (140, 575786), (223, 361480), (280, 287893), (446, 180740), (892, 90370), (1115, 72296), (1291, 62440), (1561, 51640), (1784, 45185), (2230, 36148), (2582, 31220), (3122, 25820), (4460, 18074), (5164, 15610), (6244, 12910), (6455, 12488), (7805, 10328), (8920, 9037)]