3946180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 9628416

約数和(自身を除く): 5682236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 397, 497, 710, 794, 994, 1420, 1588, 1985, 1988, 2485, 2779, 3970, 4970, 5558, 7940, 9940, 11116, 13895, 27790, 28187, 55580, 56374, 112748, 140935, 197309, 281870, 394618, 563740, 789236, 986545, 1973090, 3946180]

約数ペア:

[(1, 3946180), (2, 1973090), (4, 986545), (5, 789236), (7, 563740), (10, 394618), (14, 281870), (20, 197309), (28, 140935), (35, 112748), (70, 56374), (71, 55580), (140, 28187), (142, 27790), (284, 13895), (355, 11116), (397, 9940), (497, 7940), (710, 5558), (794, 4970), (994, 3970), (1420, 2779), (1588, 2485), (1985, 1988)]