27431915

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 13936405

約数列:

[1, 5, 7, 19, 35, 49, 71, 83, 95, 133, 245, 355, 415, 497, 581, 665, 931, 1349, 1577, 2485, 2905, 3479, 4067, 4655, 5893, 6745, 7885, 9443, 11039, 17395, 20335, 29465, 41251, 47215, 55195, 66101, 77273, 111967, 206255, 288757, 330505, 386365, 559835, 783769, 1443785, 3918845, 5486383, 27431915]

約数ペア:

[(1, 27431915), (5, 5486383), (7, 3918845), (19, 1443785), (35, 783769), (49, 559835), (71, 386365), (83, 330505), (95, 288757), (133, 206255), (245, 111967), (355, 77273), (415, 66101), (497, 55195), (581, 47215), (665, 41251), (931, 29465), (1349, 20335), (1577, 17395), (2485, 11039), (2905, 9443), (3479, 7885), (4067, 6745), (4655, 5893)]