31587440

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3109}}^1$

素因数の和:3249

約数の個数: 40

約数和(自身を含む): 74042880

約数和(自身を除く): 42455440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 3109, 5080, 6218, 10160, 12436, 15545, 24872, 31090, 49744, 62180, 124360, 248720, 394843, 789686, 1579372, 1974215, 3158744, 3948430, 6317488, 7896860, 15793720, 31587440]

約数ペア:

[(1, 31587440), (2, 15793720), (4, 7896860), (5, 6317488), (8, 3948430), (10, 3158744), (16, 1974215), (20, 1579372), (40, 789686), (80, 394843), (127, 248720), (254, 124360), (508, 62180), (635, 49744), (1016, 31090), (1270, 24872), (2032, 15545), (2540, 12436), (3109, 10160), (5080, 6218)]