19788200

素因数分解:

$2^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{607}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 46366080

約数和(自身を除く): 26577880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 163, 200, 326, 607, 652, 815, 1214, 1304, 1630, 2428, 3035, 3260, 4075, 4856, 6070, 6520, 8150, 12140, 15175, 16300, 24280, 30350, 32600, 60700, 98941, 121400, 197882, 395764, 494705, 791528, 989410, 1978820, 2473525, 3957640, 4947050, 9894100, 19788200]

約数ペア:

[(1, 19788200), (2, 9894100), (4, 4947050), (5, 3957640), (8, 2473525), (10, 1978820), (20, 989410), (25, 791528), (40, 494705), (50, 395764), (100, 197882), (163, 121400), (200, 98941), (326, 60700), (607, 32600), (652, 30350), (815, 24280), (1214, 16300), (1304, 15175), (1630, 12140), (2428, 8150), (3035, 6520), (3260, 6070), (4075, 4856)]