20099940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47857}}^1$

素因数の和:47876

約数の個数: 48

約数和(自身を含む): 64321152

約数和(自身を除く): 44221212

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, 47857, 95714, 143571, 191428, 239285, 287142, 334999, 478570, 574284, 669998, 717855, 957140, 1004997, 1339996, 1435710, 1674995, 2009994, 2871420, 3349990, 4019988, 5024985, 6699980, 10049970, 20099940]

約数ペア:

[(1, 20099940), (2, 10049970), (3, 6699980), (4, 5024985), (5, 4019988), (6, 3349990), (7, 2871420), (10, 2009994), (12, 1674995), (14, 1435710), (15, 1339996), (20, 1004997), (21, 957140), (28, 717855), (30, 669998), (35, 574284), (42, 478570), (60, 334999), (70, 287142), (84, 239285), (105, 191428), (140, 143571), (210, 95714), (420, 47857)]