64957480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1669}}^1$

素因数の和:1826

約数の個数: 64

約数和(自身を含む): 168336000

約数和(自身を除く): 103378520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 139, 140, 278, 280, 556, 695, 973, 1112, 1390, 1669, 1946, 2780, 3338, 3892, 4865, 5560, 6676, 7784, 8345, 9730, 11683, 13352, 16690, 19460, 23366, 33380, 38920, 46732, 58415, 66760, 93464, 116830, 231991, 233660, 463982, 467320, 927964, 1159955, 1623937, 1855928, 2319910, 3247874, 4639820, 6495748, 8119685, 9279640, 12991496, 16239370, 32478740, 64957480]

約数ペア:

[(1, 64957480), (2, 32478740), (4, 16239370), (5, 12991496), (7, 9279640), (8, 8119685), (10, 6495748), (14, 4639820), (20, 3247874), (28, 2319910), (35, 1855928), (40, 1623937), (56, 1159955), (70, 927964), (139, 467320), (140, 463982), (278, 233660), (280, 231991), (556, 116830), (695, 93464), (973, 66760), (1112, 58415), (1390, 46732), (1669, 38920), (1946, 33380), (2780, 23366), (3338, 19460), (3892, 16690), (4865, 13352), (5560, 11683), (6676, 9730), (7784, 8345)]