72139620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{171761}}^1$

素因数の和:171780

約数の個数: 48

約数和(自身を含む): 230848128

約数和(自身を除く): 158708508

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 171761, 343522, 515283, 687044, 858805, 1030566, 1202327, 1717610, 2061132, 2404654, 2576415, 3435220, 3606981, 4809308, 5152830, 6011635, 7213962, 10305660, 12023270, 14427924, 18034905, 24046540, 36069810, 72139620]

約数ペア:

[(1, 72139620), (2, 36069810), (3, 24046540), (4, 18034905), (5, 14427924), (6, 12023270), (7, 10305660), (10, 7213962), (12, 6011635), (14, 5152830), (15, 4809308), (20, 3606981), (21, 3435220), (28, 2576415), (30, 2404654), (35, 2061132), (42, 1717610), (60, 1202327), (70, 1030566), (84, 858805), (105, 687044), (140, 515283), (210, 343522), (420, 171761)]