7780690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1321}}^1$

素因数の和:1378

約数の個数: 32

約数和(自身を含む): 15229440

約数和(自身を除く): 7448750

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 1321, 2642, 2945, 5890, 6605, 13210, 25099, 40951, 50198, 81902, 125495, 204755, 250990, 409510, 778069, 1556138, 3890345, 7780690]

約数ペア:

[(1, 7780690), (2, 3890345), (5, 1556138), (10, 778069), (19, 409510), (31, 250990), (38, 204755), (62, 125495), (95, 81902), (155, 50198), (190, 40951), (310, 25099), (589, 13210), (1178, 6605), (1321, 5890), (2642, 2945)]