81847040

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5813}}^1$

素因数の和:5845

約数の個数: 72

約数和(自身を含む): 213908688

約数和(自身を除く): 132061648

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 5813, 7040, 11626, 14080, 23252, 29065, 46504, 58130, 63943, 93008, 116260, 127886, 186016, 232520, 255772, 319715, 372032, 465040, 511544, 639430, 744064, 930080, 1023088, 1278860, 1488128, 1860160, 2046176, 2557720, 3720320, 4092352, 5115440, 7440640, 8184704, 10230880, 16369408, 20461760, 40923520, 81847040]

約数ペア:

[(1, 81847040), (2, 40923520), (4, 20461760), (5, 16369408), (8, 10230880), (10, 8184704), (11, 7440640), (16, 5115440), (20, 4092352), (22, 3720320), (32, 2557720), (40, 2046176), (44, 1860160), (55, 1488128), (64, 1278860), (80, 1023088), (88, 930080), (110, 744064), (128, 639430), (160, 511544), (176, 465040), (220, 372032), (256, 319715), (320, 255772), (352, 232520), (440, 186016), (640, 127886), (704, 116260), (880, 93008), (1280, 63943), (1408, 58130), (1760, 46504), (2816, 29065), (3520, 23252), (5813, 14080), (7040, 11626)]