17191400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1999}}^1$

素因数の和:2058

約数の個数: 48

約数和(自身を含む): 40920000

約数和(自身を除く): 23728600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 1999, 2150, 3998, 4300, 7996, 8600, 9995, 15992, 19990, 39980, 49975, 79960, 85957, 99950, 171914, 199900, 343828, 399800, 429785, 687656, 859570, 1719140, 2148925, 3438280, 4297850, 8595700, 17191400]

約数ペア:

[(1, 17191400), (2, 8595700), (4, 4297850), (5, 3438280), (8, 2148925), (10, 1719140), (20, 859570), (25, 687656), (40, 429785), (43, 399800), (50, 343828), (86, 199900), (100, 171914), (172, 99950), (200, 85957), (215, 79960), (344, 49975), (430, 39980), (860, 19990), (1075, 15992), (1720, 9995), (1999, 8600), (2150, 7996), (3998, 4300)]