5138500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:301

約数の個数: 48

約数和(自身を含む): 11531520

約数和(自身を除く): 6393020

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 239, 250, 430, 478, 500, 860, 956, 1075, 1195, 2150, 2390, 4300, 4780, 5375, 5975, 10277, 10750, 11950, 20554, 21500, 23900, 29875, 41108, 51385, 59750, 102770, 119500, 205540, 256925, 513850, 1027700, 1284625, 2569250, 5138500]

約数ペア:

[(1, 5138500), (2, 2569250), (4, 1284625), (5, 1027700), (10, 513850), (20, 256925), (25, 205540), (43, 119500), (50, 102770), (86, 59750), (100, 51385), (125, 41108), (172, 29875), (215, 23900), (239, 21500), (250, 20554), (430, 11950), (478, 10750), (500, 10277), (860, 5975), (956, 5375), (1075, 4780), (1195, 4300), (2150, 2390)]