19898800

素因数分解:

$2^4\times 5^2\times {\mathrm{49747}}^1$

素因数の和:49765

約数の個数: 30

約数和(自身を含む): 47807828

約数和(自身を除く): 27909028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49747, 99494, 198988, 248735, 397976, 497470, 795952, 994940, 1243675, 1989880, 2487350, 3979760, 4974700, 9949400, 19898800]

約数ペア:

[(1, 19898800), (2, 9949400), (4, 4974700), (5, 3979760), (8, 2487350), (10, 1989880), (16, 1243675), (20, 994940), (25, 795952), (40, 497470), (50, 397976), (80, 248735), (100, 198988), (200, 99494), (400, 49747)]