136991960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{489257}}^1$

素因数の和:489275

約数の個数: 32

約数和(自身を含む): 352265760

約数和(自身を除く): 215273800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 489257, 978514, 1957028, 2446285, 3424799, 3914056, 4892570, 6849598, 9785140, 13699196, 17123995, 19570280, 27398392, 34247990, 68495980, 136991960]

約数ペア:

[(1, 136991960), (2, 68495980), (4, 34247990), (5, 27398392), (7, 19570280), (8, 17123995), (10, 13699196), (14, 9785140), (20, 6849598), (28, 4892570), (35, 3914056), (40, 3424799), (56, 2446285), (70, 1957028), (140, 978514), (280, 489257)]