3978500

素因数分解:

$2^2\times 5^3\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 8888880

約数和(自身を除く): 4910380

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 109, 125, 146, 218, 250, 292, 365, 436, 500, 545, 730, 1090, 1460, 1825, 2180, 2725, 3650, 5450, 7300, 7957, 9125, 10900, 13625, 15914, 18250, 27250, 31828, 36500, 39785, 54500, 79570, 159140, 198925, 397850, 795700, 994625, 1989250, 3978500]

約数ペア:

[(1, 3978500), (2, 1989250), (4, 994625), (5, 795700), (10, 397850), (20, 198925), (25, 159140), (50, 79570), (73, 54500), (100, 39785), (109, 36500), (125, 31828), (146, 27250), (218, 18250), (250, 15914), (292, 13625), (365, 10900), (436, 9125), (500, 7957), (545, 7300), (730, 5450), (1090, 3650), (1460, 2725), (1825, 2180)]