289605220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{2693}}^1$

素因数の和:3004

約数の個数: 48

約数和(自身を含む): 642680640

約数和(自身を除く): 353075420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 283, 380, 566, 1132, 1415, 2693, 2830, 5377, 5386, 5660, 10754, 10772, 13465, 21508, 26885, 26930, 51167, 53770, 53860, 102334, 107540, 204668, 255835, 511670, 762119, 1023340, 1524238, 3048476, 3810595, 7621190, 14480261, 15242380, 28960522, 57921044, 72401305, 144802610, 289605220]

約数ペア:

[(1, 289605220), (2, 144802610), (4, 72401305), (5, 57921044), (10, 28960522), (19, 15242380), (20, 14480261), (38, 7621190), (76, 3810595), (95, 3048476), (190, 1524238), (283, 1023340), (380, 762119), (566, 511670), (1132, 255835), (1415, 204668), (2693, 107540), (2830, 102334), (5377, 53860), (5386, 53770), (5660, 51167), (10754, 26930), (10772, 26885), (13465, 21508)]