231040240

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 549964800

約数和(自身を除く): 318924560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 139, 158, 263, 278, 316, 395, 526, 556, 632, 695, 790, 1052, 1112, 1264, 1315, 1390, 1580, 2104, 2224, 2630, 2780, 3160, 4208, 5260, 5560, 6320, 10520, 10981, 11120, 20777, 21040, 21962, 36557, 41554, 43924, 54905, 73114, 83108, 87848, 103885, 109810, 146228, 166216, 175696, 182785, 207770, 219620, 292456, 332432, 365570, 415540, 439240, 584912, 731140, 831080, 878480, 1462280, 1662160, 2888003, 2924560, 5776006, 11552012, 14440015, 23104024, 28880030, 46208048, 57760060, 115520120, 231040240]

約数ペア:

[(1, 231040240), (2, 115520120), (4, 57760060), (5, 46208048), (8, 28880030), (10, 23104024), (16, 14440015), (20, 11552012), (40, 5776006), (79, 2924560), (80, 2888003), (139, 1662160), (158, 1462280), (263, 878480), (278, 831080), (316, 731140), (395, 584912), (526, 439240), (556, 415540), (632, 365570), (695, 332432), (790, 292456), (1052, 219620), (1112, 207770), (1264, 182785), (1315, 175696), (1390, 166216), (1580, 146228), (2104, 109810), (2224, 103885), (2630, 87848), (2780, 83108), (3160, 73114), (4208, 54905), (5260, 43924), (5560, 41554), (6320, 36557), (10520, 21962), (10981, 21040), (11120, 20777)]