259280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{463}}^1$

素因数の和:483

約数の個数: 40

約数和(自身を含む): 690432

約数和(自身を除く): 431152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 463, 560, 926, 1852, 2315, 3241, 3704, 4630, 6482, 7408, 9260, 12964, 16205, 18520, 25928, 32410, 37040, 51856, 64820, 129640, 259280]

約数ペア:

[(1, 259280), (2, 129640), (4, 64820), (5, 51856), (7, 37040), (8, 32410), (10, 25928), (14, 18520), (16, 16205), (20, 12964), (28, 9260), (35, 7408), (40, 6482), (56, 4630), (70, 3704), (80, 3241), (112, 2315), (140, 1852), (280, 926), (463, 560)]