138959940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{330857}}^1$

素因数の和:330876

約数の個数: 48

約数和(自身を含む): 444673152

約数和(自身を除く): 305713212

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 330857, 661714, 992571, 1323428, 1654285, 1985142, 2315999, 3308570, 3970284, 4631998, 4962855, 6617140, 6947997, 9263996, 9925710, 11579995, 13895994, 19851420, 23159990, 27791988, 34739985, 46319980, 69479970, 138959940]

約数ペア:

[(1, 138959940), (2, 69479970), (3, 46319980), (4, 34739985), (5, 27791988), (6, 23159990), (7, 19851420), (10, 13895994), (12, 11579995), (14, 9925710), (15, 9263996), (20, 6947997), (21, 6617140), (28, 4962855), (30, 4631998), (35, 3970284), (42, 3308570), (60, 2315999), (70, 1985142), (84, 1654285), (105, 1323428), (140, 992571), (210, 661714), (420, 330857)]