138995675

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{571}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 214486272

約数和(自身を除く): 75490597

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 107, 175, 325, 455, 535, 571, 749, 1391, 2275, 2675, 2855, 3745, 3997, 6955, 7423, 9737, 14275, 18725, 19985, 34775, 37115, 48685, 51961, 61097, 99925, 185575, 243425, 259805, 305485, 427679, 794261, 1299025, 1527425, 2138395, 3971305, 5559827, 10691975, 19856525, 27799135, 138995675]

約数ペア:

[(1, 138995675), (5, 27799135), (7, 19856525), (13, 10691975), (25, 5559827), (35, 3971305), (65, 2138395), (91, 1527425), (107, 1299025), (175, 794261), (325, 427679), (455, 305485), (535, 259805), (571, 243425), (749, 185575), (1391, 99925), (2275, 61097), (2675, 51961), (2855, 48685), (3745, 37115), (3997, 34775), (6955, 19985), (7423, 18725), (9737, 14275)]