66743440

素因数分解:

$2^4\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1361}}^1$

素因数の和:1987

約数の個数: 40

約数和(自身を含む): 155545848

約数和(自身を除く): 88802408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 613, 1226, 1361, 2452, 2722, 3065, 4904, 5444, 6130, 6805, 9808, 10888, 12260, 13610, 21776, 24520, 27220, 49040, 54440, 108880, 834293, 1668586, 3337172, 4171465, 6674344, 8342930, 13348688, 16685860, 33371720, 66743440]

約数ペア:

[(1, 66743440), (2, 33371720), (4, 16685860), (5, 13348688), (8, 8342930), (10, 6674344), (16, 4171465), (20, 3337172), (40, 1668586), (80, 834293), (613, 108880), (1226, 54440), (1361, 49040), (2452, 27220), (2722, 24520), (3065, 21776), (4904, 13610), (5444, 12260), (6130, 10888), (6805, 9808)]