397005280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{354469}}^1$

素因数の和:354491

約数の個数: 48

約数和(自身を含む): 1071917280

約数和(自身を除く): 674912000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 354469, 708938, 1417876, 1772345, 2481283, 2835752, 3544690, 4962566, 5671504, 7089380, 9925132, 11343008, 12406415, 14178760, 19850264, 24812830, 28357520, 39700528, 49625660, 56715040, 79401056, 99251320, 198502640, 397005280]

約数ペア:

[(1, 397005280), (2, 198502640), (4, 99251320), (5, 79401056), (7, 56715040), (8, 49625660), (10, 39700528), (14, 28357520), (16, 24812830), (20, 19850264), (28, 14178760), (32, 12406415), (35, 11343008), (40, 9925132), (56, 7089380), (70, 5671504), (80, 4962566), (112, 3544690), (140, 2835752), (160, 2481283), (224, 1772345), (280, 1417876), (560, 708938), (1120, 354469)]