978009620

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{142567}}^1$

素因数の和:142597

約数の個数: 48

約数和(自身を含む): 2395142400

約数和(自身を除く): 1417132780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 142567, 285134, 570268, 712835, 997969, 1425670, 1995938, 2851340, 3991876, 4989845, 6985783, 9979690, 13971566, 19959380, 27943132, 34928915, 48900481, 69857830, 97800962, 139715660, 195601924, 244502405, 489004810, 978009620]

約数ペア:

[(1, 978009620), (2, 489004810), (4, 244502405), (5, 195601924), (7, 139715660), (10, 97800962), (14, 69857830), (20, 48900481), (28, 34928915), (35, 27943132), (49, 19959380), (70, 13971566), (98, 9979690), (140, 6985783), (196, 4989845), (245, 3991876), (343, 2851340), (490, 1995938), (686, 1425670), (980, 997969), (1372, 712835), (1715, 570268), (3430, 285134), (6860, 142567)]