204178100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{41669}}^1$

素因数の和:41697

約数の個数: 54

約数和(自身を含む): 515416230

約数和(自身を除く): 311238130

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 41669, 83338, 166676, 208345, 291683, 416690, 583366, 833380, 1041725, 1166732, 1458415, 2041781, 2083450, 2916830, 4083562, 4166900, 5833660, 7292075, 8167124, 10208905, 14584150, 20417810, 29168300, 40835620, 51044525, 102089050, 204178100]

約数ペア:

[(1, 204178100), (2, 102089050), (4, 51044525), (5, 40835620), (7, 29168300), (10, 20417810), (14, 14584150), (20, 10208905), (25, 8167124), (28, 7292075), (35, 5833660), (49, 4166900), (50, 4083562), (70, 2916830), (98, 2083450), (100, 2041781), (140, 1458415), (175, 1166732), (196, 1041725), (245, 833380), (350, 583366), (490, 416690), (700, 291683), (980, 208345), (1225, 166676), (2450, 83338), (4900, 41669)]