1286174720

素因数分解:

$2^{11}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 192

約数和(自身を含む): 3321077760

約数和(自身を除く): 2034903040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 43, 46, 64, 80, 86, 92, 115, 127, 128, 160, 172, 184, 215, 230, 254, 256, 320, 344, 368, 430, 460, 508, 512, 635, 640, 688, 736, 860, 920, 989, 1016, 1024, 1270, 1280, 1376, 1472, 1720, 1840, 1978, 2032, 2048, 2540, 2560, 2752, 2921, 2944, 3440, 3680, 3956, 4064, 4945, 5080, 5120, 5461, 5504, 5842, 5888, 6880, 7360, 7912, 8128, 9890, 10160, 10240, 10922, 11008, 11684, 11776, 13760, 14605, 14720, 15824, 16256, 19780, 20320, 21844, 22016, 23368, 23552, 27305, 27520, 29210, 29440, 31648, 32512, 39560, 40640, 43688, 44032, 46736, 47104, 54610, 55040, 58420, 58880, 63296, 65024, 79120, 81280, 87376, 88064, 93472, 109220, 110080, 116840, 117760, 125603, 126592, 130048, 158240, 162560, 174752, 186944, 218440, 220160, 233680, 235520, 251206, 253184, 260096, 316480, 325120, 349504, 373888, 436880, 440320, 467360, 502412, 506368, 628015, 632960, 650240, 699008, 747776, 873760, 934720, 1004824, 1012736, 1256030, 1265920, 1300480, 1398016, 1495552, 1747520, 1869440, 2009648, 2025472, 2512060, 2531840, 2796032, 2991104, 3495040, 3738880, 4019296, 5024120, 5063680, 5592064, 5982208, 6990080, 7477760, 8038592, 10048240, 10127360, 11184128, 13980160, 14955520, 16077184, 20096480, 27960320, 29911040, 32154368, 40192960, 55920640, 64308736, 80385920, 128617472, 160771840, 257234944, 321543680, 643087360, 1286174720]

約数ペア:

[(1, 1286174720), (2, 643087360), (4, 321543680), (5, 257234944), (8, 160771840), (10, 128617472), (16, 80385920), (20, 64308736), (23, 55920640), (32, 40192960), (40, 32154368), (43, 29911040), (46, 27960320), (64, 20096480), (80, 16077184), (86, 14955520), (92, 13980160), (115, 11184128), (127, 10127360), (128, 10048240), (160, 8038592), (172, 7477760), (184, 6990080), (215, 5982208), (230, 5592064), (254, 5063680), (256, 5024120), (320, 4019296), (344, 3738880), (368, 3495040), (430, 2991104), (460, 2796032), (508, 2531840), (512, 2512060), (635, 2025472), (640, 2009648), (688, 1869440), (736, 1747520), (860, 1495552), (920, 1398016), (989, 1300480), (1016, 1265920), (1024, 1256030), (1270, 1012736), (1280, 1004824), (1376, 934720), (1472, 873760), (1720, 747776), (1840, 699008), (1978, 650240), (2032, 632960), (2048, 628015), (2540, 506368), (2560, 502412), (2752, 467360), (2921, 440320), (2944, 436880), (3440, 373888), (3680, 349504), (3956, 325120), (4064, 316480), (4945, 260096), (5080, 253184), (5120, 251206), (5461, 235520), (5504, 233680), (5842, 220160), (5888, 218440), (6880, 186944), (7360, 174752), (7912, 162560), (8128, 158240), (9890, 130048), (10160, 126592), (10240, 125603), (10922, 117760), (11008, 116840), (11684, 110080), (11776, 109220), (13760, 93472), (14605, 88064), (14720, 87376), (15824, 81280), (16256, 79120), (19780, 65024), (20320, 63296), (21844, 58880), (22016, 58420), (23368, 55040), (23552, 54610), (27305, 47104), (27520, 46736), (29210, 44032), (29440, 43688), (31648, 40640), (32512, 39560)]