208702040

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{8429}}^1$

素因数の和:9059

約数の個数: 32

約数和(自身を含む): 470394000

約数和(自身を除く): 261691960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 1238, 2476, 3095, 4952, 6190, 8429, 12380, 16858, 24760, 33716, 42145, 67432, 84290, 168580, 337160, 5217551, 10435102, 20870204, 26087755, 41740408, 52175510, 104351020, 208702040]

約数ペア:

[(1, 208702040), (2, 104351020), (4, 52175510), (5, 41740408), (8, 26087755), (10, 20870204), (20, 10435102), (40, 5217551), (619, 337160), (1238, 168580), (2476, 84290), (3095, 67432), (4952, 42145), (6190, 33716), (8429, 24760), (12380, 16858)]