991558980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{4519}}^1$

素因数の和:4610

約数の個数: 144

約数和(自身を含む): 3198424320

約数和(自身を除く): 2206865340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 53, 60, 69, 90, 92, 106, 115, 138, 159, 180, 207, 212, 230, 265, 276, 318, 345, 414, 460, 477, 530, 636, 690, 795, 828, 954, 1035, 1060, 1219, 1380, 1590, 1908, 2070, 2385, 2438, 3180, 3657, 4140, 4519, 4770, 4876, 6095, 7314, 9038, 9540, 10971, 12190, 13557, 14628, 18076, 18285, 21942, 22595, 24380, 27114, 36570, 40671, 43884, 45190, 54228, 54855, 67785, 73140, 81342, 90380, 103937, 109710, 135570, 162684, 203355, 207874, 219420, 239507, 271140, 311811, 406710, 415748, 479014, 519685, 623622, 718521, 813420, 935433, 958028, 1039370, 1197535, 1247244, 1437042, 1559055, 1870866, 2078740, 2155563, 2395070, 2874084, 3118110, 3592605, 3741732, 4311126, 4677165, 4790140, 5508661, 6236220, 7185210, 8622252, 9354330, 10777815, 11017322, 14370420, 16525983, 18708660, 21555630, 22034644, 27543305, 33051966, 43111260, 49577949, 55086610, 66103932, 82629915, 99155898, 110173220, 165259830, 198311796, 247889745, 330519660, 495779490, 991558980]

約数ペア:

[(1, 991558980), (2, 495779490), (3, 330519660), (4, 247889745), (5, 198311796), (6, 165259830), (9, 110173220), (10, 99155898), (12, 82629915), (15, 66103932), (18, 55086610), (20, 49577949), (23, 43111260), (30, 33051966), (36, 27543305), (45, 22034644), (46, 21555630), (53, 18708660), (60, 16525983), (69, 14370420), (90, 11017322), (92, 10777815), (106, 9354330), (115, 8622252), (138, 7185210), (159, 6236220), (180, 5508661), (207, 4790140), (212, 4677165), (230, 4311126), (265, 3741732), (276, 3592605), (318, 3118110), (345, 2874084), (414, 2395070), (460, 2155563), (477, 2078740), (530, 1870866), (636, 1559055), (690, 1437042), (795, 1247244), (828, 1197535), (954, 1039370), (1035, 958028), (1060, 935433), (1219, 813420), (1380, 718521), (1590, 623622), (1908, 519685), (2070, 479014), (2385, 415748), (2438, 406710), (3180, 311811), (3657, 271140), (4140, 239507), (4519, 219420), (4770, 207874), (4876, 203355), (6095, 162684), (7314, 135570), (9038, 109710), (9540, 103937), (10971, 90380), (12190, 81342), (13557, 73140), (14628, 67785), (18076, 54855), (18285, 54228), (21942, 45190), (22595, 43884), (24380, 40671), (27114, 36570)]