990653920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:741

約数の個数: 192

約数和(自身を含む): 2702548800

約数和(自身を除く): 1711894880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 29, 32, 34, 38, 40, 58, 68, 76, 80, 85, 95, 116, 136, 145, 152, 160, 170, 190, 232, 272, 290, 304, 323, 340, 380, 464, 493, 544, 551, 580, 608, 646, 661, 680, 760, 928, 986, 1102, 1160, 1292, 1322, 1360, 1520, 1615, 1972, 2204, 2320, 2465, 2584, 2644, 2720, 2755, 3040, 3230, 3305, 3944, 4408, 4640, 4930, 5168, 5288, 5510, 6460, 6610, 7888, 8816, 9367, 9860, 10336, 10576, 11020, 11237, 12559, 12920, 13220, 15776, 17632, 18734, 19169, 19720, 21152, 22040, 22474, 25118, 25840, 26440, 37468, 38338, 39440, 44080, 44948, 46835, 50236, 51680, 52880, 56185, 62795, 74936, 76676, 78880, 88160, 89896, 93670, 95845, 100472, 105760, 112370, 125590, 149872, 153352, 179792, 187340, 191690, 200944, 213503, 224740, 251180, 299744, 306704, 325873, 359584, 364211, 374680, 383380, 401888, 427006, 449480, 502360, 613408, 651746, 728422, 749360, 766760, 854012, 898960, 1004720, 1067515, 1303492, 1456844, 1498720, 1533520, 1629365, 1708024, 1797920, 1821055, 2009440, 2135030, 2606984, 2913688, 3067040, 3258730, 3416048, 3642110, 4270060, 5213968, 5827376, 6191587, 6517460, 6832096, 7284220, 8540120, 10427936, 11654752, 12383174, 13034920, 14568440, 17080240, 24766348, 26069840, 29136880, 30957935, 34160480, 49532696, 52139680, 58273760, 61915870, 99065392, 123831740, 198130784, 247663480, 495326960, 990653920]

約数ペア:

[(1, 990653920), (2, 495326960), (4, 247663480), (5, 198130784), (8, 123831740), (10, 99065392), (16, 61915870), (17, 58273760), (19, 52139680), (20, 49532696), (29, 34160480), (32, 30957935), (34, 29136880), (38, 26069840), (40, 24766348), (58, 17080240), (68, 14568440), (76, 13034920), (80, 12383174), (85, 11654752), (95, 10427936), (116, 8540120), (136, 7284220), (145, 6832096), (152, 6517460), (160, 6191587), (170, 5827376), (190, 5213968), (232, 4270060), (272, 3642110), (290, 3416048), (304, 3258730), (323, 3067040), (340, 2913688), (380, 2606984), (464, 2135030), (493, 2009440), (544, 1821055), (551, 1797920), (580, 1708024), (608, 1629365), (646, 1533520), (661, 1498720), (680, 1456844), (760, 1303492), (928, 1067515), (986, 1004720), (1102, 898960), (1160, 854012), (1292, 766760), (1322, 749360), (1360, 728422), (1520, 651746), (1615, 613408), (1972, 502360), (2204, 449480), (2320, 427006), (2465, 401888), (2584, 383380), (2644, 374680), (2720, 364211), (2755, 359584), (3040, 325873), (3230, 306704), (3305, 299744), (3944, 251180), (4408, 224740), (4640, 213503), (4930, 200944), (5168, 191690), (5288, 187340), (5510, 179792), (6460, 153352), (6610, 149872), (7888, 125590), (8816, 112370), (9367, 105760), (9860, 100472), (10336, 95845), (10576, 93670), (11020, 89896), (11237, 88160), (12559, 78880), (12920, 76676), (13220, 74936), (15776, 62795), (17632, 56185), (18734, 52880), (19169, 51680), (19720, 50236), (21152, 46835), (22040, 44948), (22474, 44080), (25118, 39440), (25840, 38338), (26440, 37468)]