18419380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{883}}^1$

素因数の和:1048

約数の個数: 48

約数和(自身を含む): 44553600

約数和(自身を除く): 26134220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 883, 1043, 1490, 1766, 2086, 2980, 3532, 4172, 4415, 5215, 6181, 8830, 10430, 12362, 17660, 20860, 24724, 30905, 61810, 123620, 131567, 263134, 526268, 657835, 920969, 1315670, 1841938, 2631340, 3683876, 4604845, 9209690, 18419380]

約数ペア:

[(1, 18419380), (2, 9209690), (4, 4604845), (5, 3683876), (7, 2631340), (10, 1841938), (14, 1315670), (20, 920969), (28, 657835), (35, 526268), (70, 263134), (140, 131567), (149, 123620), (298, 61810), (596, 30905), (745, 24724), (883, 20860), (1043, 17660), (1490, 12362), (1766, 10430), (2086, 8830), (2980, 6181), (3532, 5215), (4172, 4415)]