253374680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{1663}}^1$

素因数の和:1980

約数の個数: 64

約数和(自身を含む): 616412160

約数和(自身を除く): 363037480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 293, 520, 586, 1172, 1465, 1663, 2344, 2930, 3326, 3809, 5860, 6652, 7618, 8315, 11720, 13304, 15236, 16630, 19045, 21619, 30472, 33260, 38090, 43238, 66520, 76180, 86476, 108095, 152360, 172952, 216190, 432380, 487259, 864760, 974518, 1949036, 2436295, 3898072, 4872590, 6334367, 9745180, 12668734, 19490360, 25337468, 31671835, 50674936, 63343670, 126687340, 253374680]

約数ペア:

[(1, 253374680), (2, 126687340), (4, 63343670), (5, 50674936), (8, 31671835), (10, 25337468), (13, 19490360), (20, 12668734), (26, 9745180), (40, 6334367), (52, 4872590), (65, 3898072), (104, 2436295), (130, 1949036), (260, 974518), (293, 864760), (520, 487259), (586, 432380), (1172, 216190), (1465, 172952), (1663, 152360), (2344, 108095), (2930, 86476), (3326, 76180), (3809, 66520), (5860, 43238), (6652, 38090), (7618, 33260), (8315, 30472), (11720, 21619), (13304, 19045), (15236, 16630)]