68811960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{81919}}^1$

素因数の和:81940

約数の個数: 64

約数和(自身を含む): 235929600

約数和(自身を除く): 167117640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 81919, 163838, 245757, 327676, 409595, 491514, 573433, 655352, 819190, 983028, 1146866, 1228785, 1638380, 1720299, 1966056, 2293732, 2457570, 2867165, 3276760, 3440598, 4587464, 4915140, 5734330, 6881196, 8601495, 9830280, 11468660, 13762392, 17202990, 22937320, 34405980, 68811960]

約数ペア:

[(1, 68811960), (2, 34405980), (3, 22937320), (4, 17202990), (5, 13762392), (6, 11468660), (7, 9830280), (8, 8601495), (10, 6881196), (12, 5734330), (14, 4915140), (15, 4587464), (20, 3440598), (21, 3276760), (24, 2867165), (28, 2457570), (30, 2293732), (35, 1966056), (40, 1720299), (42, 1638380), (56, 1228785), (60, 1146866), (70, 983028), (84, 819190), (105, 655352), (120, 573433), (140, 491514), (168, 409595), (210, 327676), (280, 245757), (420, 163838), (840, 81919)]