23990000

素因数分解:

$2^4\times 5^4\times {\mathrm{2399}}^1$

素因数の和:2427

約数の個数: 50

約数和(自身を含む): 58106400

約数和(自身を除く): 34116400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2399, 2500, 4798, 5000, 9596, 10000, 11995, 19192, 23990, 38384, 47980, 59975, 95960, 119950, 191920, 239900, 299875, 479800, 599750, 959600, 1199500, 1499375, 2399000, 2998750, 4798000, 5997500, 11995000, 23990000]

約数ペア:

[(1, 23990000), (2, 11995000), (4, 5997500), (5, 4798000), (8, 2998750), (10, 2399000), (16, 1499375), (20, 1199500), (25, 959600), (40, 599750), (50, 479800), (80, 299875), (100, 239900), (125, 191920), (200, 119950), (250, 95960), (400, 59975), (500, 47980), (625, 38384), (1000, 23990), (1250, 19192), (2000, 11995), (2399, 10000), (2500, 9596), (4798, 5000)]