18121750

素因数分解:

$2^1\times 5^3\times {\mathrm{173}}^1\times {\mathrm{419}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 34201440

約数和(自身を除く): 16079690

約数列:

[1, 2, 5, 10, 25, 50, 125, 173, 250, 346, 419, 838, 865, 1730, 2095, 4190, 4325, 8650, 10475, 20950, 21625, 43250, 52375, 72487, 104750, 144974, 362435, 724870, 1812175, 3624350, 9060875, 18121750]

約数ペア:

[(1, 18121750), (2, 9060875), (5, 3624350), (10, 1812175), (25, 724870), (50, 362435), (125, 144974), (173, 104750), (250, 72487), (346, 52375), (419, 43250), (838, 21625), (865, 20950), (1730, 10475), (2095, 8650), (4190, 4325)]