19997600

素因数分解:

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

素因数の和:3598

約数の個数: 72

約数和(自身を含む): 55808928

約数和(自身を除く): 35811328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 140, 160, 175, 200, 224, 280, 350, 400, 560, 700, 800, 1120, 1400, 2800, 3571, 5600, 7142, 14284, 17855, 24997, 28568, 35710, 49994, 57136, 71420, 89275, 99988, 114272, 124985, 142840, 178550, 199976, 249970, 285680, 357100, 399952, 499940, 571360, 624925, 714200, 799904, 999880, 1249850, 1428400, 1999760, 2499700, 2856800, 3999520, 4999400, 9998800, 19997600]

約数ペア:

[(1, 19997600), (2, 9998800), (4, 4999400), (5, 3999520), (7, 2856800), (8, 2499700), (10, 1999760), (14, 1428400), (16, 1249850), (20, 999880), (25, 799904), (28, 714200), (32, 624925), (35, 571360), (40, 499940), (50, 399952), (56, 357100), (70, 285680), (80, 249970), (100, 199976), (112, 178550), (140, 142840), (160, 124985), (175, 114272), (200, 99988), (224, 89275), (280, 71420), (350, 57136), (400, 49994), (560, 35710), (700, 28568), (800, 24997), (1120, 17855), (1400, 14284), (2800, 7142), (3571, 5600)]