399020350

素因数分解:

$2^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{57413}}^1$

素因数の和:57564

約数の個数: 24

約数和(自身を含む): 747530280

約数和(自身を除く): 348509930

約数列:

[1, 2, 5, 10, 25, 50, 139, 278, 695, 1390, 3475, 6950, 57413, 114826, 287065, 574130, 1435325, 2870650, 7980407, 15960814, 39902035, 79804070, 199510175, 399020350]

約数ペア:

[(1, 399020350), (2, 199510175), (5, 79804070), (10, 39902035), (25, 15960814), (50, 7980407), (139, 2870650), (278, 1435325), (695, 574130), (1390, 287065), (3475, 114826), (6950, 57413)]