40798000

素因数分解:

$2^4\times 5^3\times {\mathrm{20399}}^1$

素因数の和:20422

約数の個数: 40

約数和(自身を含む): 98654400

約数和(自身を除く): 57856400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 20399, 40798, 81596, 101995, 163192, 203990, 326384, 407980, 509975, 815960, 1019950, 1631920, 2039900, 2549875, 4079800, 5099750, 8159600, 10199500, 20399000, 40798000]

約数ペア:

[(1, 40798000), (2, 20399000), (4, 10199500), (5, 8159600), (8, 5099750), (10, 4079800), (16, 2549875), (20, 2039900), (25, 1631920), (40, 1019950), (50, 815960), (80, 509975), (100, 407980), (125, 326384), (200, 203990), (250, 163192), (400, 101995), (500, 81596), (1000, 40798), (2000, 20399)]