27681280

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{983}}^1$

素因数の和:1017

約数の個数: 80

約数和(自身を含む): 72477504

約数和(自身を除く): 44796224

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, 512, 640, 704, 880, 983, 1280, 1408, 1760, 1966, 2560, 2816, 3520, 3932, 4915, 5632, 7040, 7864, 9830, 10813, 14080, 15728, 19660, 21626, 28160, 31456, 39320, 43252, 54065, 62912, 78640, 86504, 108130, 125824, 157280, 173008, 216260, 251648, 314560, 346016, 432520, 503296, 629120, 692032, 865040, 1258240, 1384064, 1730080, 2516480, 2768128, 3460160, 5536256, 6920320, 13840640, 27681280]

約数ペア:

[(1, 27681280), (2, 13840640), (4, 6920320), (5, 5536256), (8, 3460160), (10, 2768128), (11, 2516480), (16, 1730080), (20, 1384064), (22, 1258240), (32, 865040), (40, 692032), (44, 629120), (55, 503296), (64, 432520), (80, 346016), (88, 314560), (110, 251648), (128, 216260), (160, 173008), (176, 157280), (220, 125824), (256, 108130), (320, 86504), (352, 78640), (440, 62912), (512, 54065), (640, 43252), (704, 39320), (880, 31456), (983, 28160), (1280, 21626), (1408, 19660), (1760, 15728), (1966, 14080), (2560, 10813), (2816, 9830), (3520, 7864), (3932, 7040), (4915, 5632)]