1999760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{3571}}^1$

素因数の和:3591

約数の個数: 40

約数和(自身を含む): 5315136

約数和(自身を除く): 3315376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 3571, 7142, 14284, 17855, 24997, 28568, 35710, 49994, 57136, 71420, 99988, 124985, 142840, 199976, 249970, 285680, 399952, 499940, 999880, 1999760]

約数ペア:

[(1, 1999760), (2, 999880), (4, 499940), (5, 399952), (7, 285680), (8, 249970), (10, 199976), (14, 142840), (16, 124985), (20, 99988), (28, 71420), (35, 57136), (40, 49994), (56, 35710), (70, 28568), (80, 24997), (112, 17855), (140, 14284), (280, 7142), (560, 3571)]