21530080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{941}}^1$

素因数の和:980

約数の個数: 96

約数和(自身を含む): 59820768

約数和(自身を除く): 38290688

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 352, 416, 440, 520, 572, 715, 880, 941, 1040, 1144, 1430, 1760, 1882, 2080, 2288, 2860, 3764, 4576, 4705, 5720, 7528, 9410, 10351, 11440, 12233, 15056, 18820, 20702, 22880, 24466, 30112, 37640, 41404, 48932, 51755, 61165, 75280, 82808, 97864, 103510, 122330, 134563, 150560, 165616, 195728, 207020, 244660, 269126, 331232, 391456, 414040, 489320, 538252, 672815, 828080, 978640, 1076504, 1345630, 1656160, 1957280, 2153008, 2691260, 4306016, 5382520, 10765040, 21530080]

約数ペア:

[(1, 21530080), (2, 10765040), (4, 5382520), (5, 4306016), (8, 2691260), (10, 2153008), (11, 1957280), (13, 1656160), (16, 1345630), (20, 1076504), (22, 978640), (26, 828080), (32, 672815), (40, 538252), (44, 489320), (52, 414040), (55, 391456), (65, 331232), (80, 269126), (88, 244660), (104, 207020), (110, 195728), (130, 165616), (143, 150560), (160, 134563), (176, 122330), (208, 103510), (220, 97864), (260, 82808), (286, 75280), (352, 61165), (416, 51755), (440, 48932), (520, 41404), (572, 37640), (715, 30112), (880, 24466), (941, 22880), (1040, 20702), (1144, 18820), (1430, 15056), (1760, 12233), (1882, 11440), (2080, 10351), (2288, 9410), (2860, 7528), (3764, 5720), (4576, 4705)]