129640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{463}}^1$

素因数の和:481

約数の個数: 32

約数和(自身を含む): 334080

約数和(自身を除く): 204440

約数列:

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

約数ペア:

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