2017405720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{51517}}^1$

素因数の和:51628

約数の個数: 64

約数和(自身を含む): 5007549600

約数和(自身を除く): 2990143880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 440, 445, 712, 890, 979, 1780, 1958, 3560, 3916, 4895, 7832, 9790, 19580, 39160, 51517, 103034, 206068, 257585, 412136, 515170, 566687, 1030340, 1133374, 2060680, 2266748, 2833435, 4533496, 4585013, 5666870, 9170026, 11333740, 18340052, 22667480, 22925065, 36680104, 45850130, 50435143, 91700260, 100870286, 183400520, 201740572, 252175715, 403481144, 504351430, 1008702860, 2017405720]

約数ペア:

[(1, 2017405720), (2, 1008702860), (4, 504351430), (5, 403481144), (8, 252175715), (10, 201740572), (11, 183400520), (20, 100870286), (22, 91700260), (40, 50435143), (44, 45850130), (55, 36680104), (88, 22925065), (89, 22667480), (110, 18340052), (178, 11333740), (220, 9170026), (356, 5666870), (440, 4585013), (445, 4533496), (712, 2833435), (890, 2266748), (979, 2060680), (1780, 1133374), (1958, 1030340), (3560, 566687), (3916, 515170), (4895, 412136), (7832, 257585), (9790, 206068), (19580, 103034), (39160, 51517)]