215979820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53197}}^1$

素因数の和:53242

約数の個数: 48

約数和(自身を含む): 536235840

約数和(自身を除く): 320256020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 53197, 106394, 212788, 265985, 372379, 531970, 744758, 1063940, 1489516, 1542713, 1861895, 3085426, 3723790, 6170852, 7447580, 7713565, 10798991, 15427130, 21597982, 30854260, 43195964, 53994955, 107989910, 215979820]

約数ペア:

[(1, 215979820), (2, 107989910), (4, 53994955), (5, 43195964), (7, 30854260), (10, 21597982), (14, 15427130), (20, 10798991), (28, 7713565), (29, 7447580), (35, 6170852), (58, 3723790), (70, 3085426), (116, 1861895), (140, 1542713), (145, 1489516), (203, 1063940), (290, 744758), (406, 531970), (580, 372379), (812, 265985), (1015, 212788), (2030, 106394), (4060, 53197)]