2788400

素因数分解:

$2^4\times 5^2\times {\mathrm{6971}}^1$

素因数の和:6989

約数の個数: 30

約数和(自身を含む): 6700092

約数和(自身を除く): 3911692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 6971, 13942, 27884, 34855, 55768, 69710, 111536, 139420, 174275, 278840, 348550, 557680, 697100, 1394200, 2788400]

約数ペア:

[(1, 2788400), (2, 1394200), (4, 697100), (5, 557680), (8, 348550), (10, 278840), (16, 174275), (20, 139420), (25, 111536), (40, 69710), (50, 55768), (80, 34855), (100, 27884), (200, 13942), (400, 6971)]