291225620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{297169}}^1$

素因数の和:297192

約数の個数: 36

約数和(自身を含む): 711424980

約数和(自身を除く): 420199360

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 297169, 594338, 1188676, 1485845, 2080183, 2971690, 4160366, 5943380, 8320732, 10400915, 14561281, 20801830, 29122562, 41603660, 58245124, 72806405, 145612810, 291225620]

約数ペア:

[(1, 291225620), (2, 145612810), (4, 72806405), (5, 58245124), (7, 41603660), (10, 29122562), (14, 20801830), (20, 14561281), (28, 10400915), (35, 8320732), (49, 5943380), (70, 4160366), (98, 2971690), (140, 2080183), (196, 1485845), (245, 1188676), (490, 594338), (980, 297169)]