28447370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 62657280

約数和(自身を除く): 34209910

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 73, 95, 133, 146, 190, 266, 293, 365, 511, 586, 665, 730, 1022, 1330, 1387, 1465, 2051, 2555, 2774, 2930, 4102, 5110, 5567, 6935, 9709, 10255, 11134, 13870, 19418, 20510, 21389, 27835, 38969, 42778, 48545, 55670, 77938, 97090, 106945, 149723, 194845, 213890, 299446, 389690, 406391, 748615, 812782, 1497230, 2031955, 2844737, 4063910, 5689474, 14223685, 28447370]

約数ペア:

[(1, 28447370), (2, 14223685), (5, 5689474), (7, 4063910), (10, 2844737), (14, 2031955), (19, 1497230), (35, 812782), (38, 748615), (70, 406391), (73, 389690), (95, 299446), (133, 213890), (146, 194845), (190, 149723), (266, 106945), (293, 97090), (365, 77938), (511, 55670), (586, 48545), (665, 42778), (730, 38969), (1022, 27835), (1330, 21389), (1387, 20510), (1465, 19418), (2051, 13870), (2555, 11134), (2774, 10255), (2930, 9709), (4102, 6935), (5110, 5567)]