389350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{599}}^1$

素因数の和:624

約数の個数: 24

約数和(自身を含む): 781200

約数和(自身を除く): 391850

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 599, 650, 1198, 2995, 5990, 7787, 14975, 15574, 29950, 38935, 77870, 194675, 389350]

約数ペア:

[(1, 389350), (2, 194675), (5, 77870), (10, 38935), (13, 29950), (25, 15574), (26, 14975), (50, 7787), (65, 5990), (130, 2995), (325, 1198), (599, 650)]