388806670

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{521}}^1\times {\mathrm{1523}}^1$

素因数の和:2065

約数の個数: 48

約数和(自身を含む): 816211728

約数和(自身を除く): 427405058

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 521, 1042, 1523, 2605, 3046, 3647, 5210, 7294, 7615, 10661, 15230, 18235, 21322, 25529, 36470, 51058, 53305, 74627, 106610, 127645, 149254, 255290, 373135, 746270, 793483, 1586966, 3967415, 5554381, 7934830, 11108762, 27771905, 38880667, 55543810, 77761334, 194403335, 388806670]

約数ペア:

[(1, 388806670), (2, 194403335), (5, 77761334), (7, 55543810), (10, 38880667), (14, 27771905), (35, 11108762), (49, 7934830), (70, 5554381), (98, 3967415), (245, 1586966), (490, 793483), (521, 746270), (1042, 373135), (1523, 255290), (2605, 149254), (3046, 127645), (3647, 106610), (5210, 74627), (7294, 53305), (7615, 51058), (10661, 36470), (15230, 25529), (18235, 21322)]