66960040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2687}}^1$

素因数の和:2794

約数の個数: 64

約数和(自身を含む): 174182400

約数和(自身を除く): 107222360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1780, 2492, 2687, 3115, 3560, 4984, 5374, 6230, 10748, 12460, 13435, 18809, 21496, 24920, 26870, 37618, 53740, 75236, 94045, 107480, 150472, 188090, 239143, 376180, 478286, 752360, 956572, 1195715, 1674001, 1913144, 2391430, 3348002, 4782860, 6696004, 8370005, 9565720, 13392008, 16740010, 33480020, 66960040]

約数ペア:

[(1, 66960040), (2, 33480020), (4, 16740010), (5, 13392008), (7, 9565720), (8, 8370005), (10, 6696004), (14, 4782860), (20, 3348002), (28, 2391430), (35, 1913144), (40, 1674001), (56, 1195715), (70, 956572), (89, 752360), (140, 478286), (178, 376180), (280, 239143), (356, 188090), (445, 150472), (623, 107480), (712, 94045), (890, 75236), (1246, 53740), (1780, 37618), (2492, 26870), (2687, 24920), (3115, 21496), (3560, 18809), (4984, 13435), (5374, 12460), (6230, 10748)]