209978720

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{26783}}^1$

素因数の和:26812

約数の個数: 72

約数和(自身を含む): 577088064

約数和(自身を除く): 367109344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 26783, 53566, 107132, 133915, 187481, 214264, 267830, 374962, 428528, 535660, 749924, 857056, 937405, 1071320, 1312367, 1499848, 1874810, 2142640, 2624734, 2999696, 3749620, 4285280, 5249468, 5999392, 6561835, 7499240, 10498936, 13123670, 14998480, 20997872, 26247340, 29996960, 41995744, 52494680, 104989360, 209978720]

約数ペア:

[(1, 209978720), (2, 104989360), (4, 52494680), (5, 41995744), (7, 29996960), (8, 26247340), (10, 20997872), (14, 14998480), (16, 13123670), (20, 10498936), (28, 7499240), (32, 6561835), (35, 5999392), (40, 5249468), (49, 4285280), (56, 3749620), (70, 2999696), (80, 2624734), (98, 2142640), (112, 1874810), (140, 1499848), (160, 1312367), (196, 1071320), (224, 937405), (245, 857056), (280, 749924), (392, 535660), (490, 428528), (560, 374962), (784, 267830), (980, 214264), (1120, 187481), (1568, 133915), (1960, 107132), (3920, 53566), (7840, 26783)]