990394920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{467}}^1$

素因数の和:664

約数の個数: 192

約数和(自身を含む): 3324784320

約数和(自身を除く): 2334389400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 72, 86, 90, 120, 129, 137, 172, 180, 215, 258, 274, 344, 360, 387, 411, 430, 467, 516, 548, 645, 685, 774, 822, 860, 934, 1032, 1096, 1233, 1290, 1370, 1401, 1548, 1644, 1720, 1868, 1935, 2055, 2335, 2466, 2580, 2740, 2802, 3096, 3288, 3736, 3870, 4110, 4203, 4670, 4932, 5160, 5480, 5604, 5891, 6165, 7005, 7740, 8220, 8406, 9340, 9864, 11208, 11782, 12330, 14010, 15480, 16440, 16812, 17673, 18680, 20081, 21015, 23564, 24660, 28020, 29455, 33624, 35346, 40162, 42030, 47128, 49320, 53019, 56040, 58910, 60243, 63979, 70692, 80324, 84060, 88365, 100405, 106038, 117820, 120486, 127958, 141384, 160648, 168120, 176730, 180729, 191937, 200810, 212076, 235640, 240972, 255916, 265095, 301215, 319895, 353460, 361458, 383874, 401620, 424152, 481944, 511832, 530190, 575811, 602430, 639790, 706920, 722916, 767748, 803240, 903645, 959685, 1060380, 1151622, 1204860, 1279580, 1445832, 1535496, 1807290, 1919370, 2120760, 2303244, 2409720, 2559160, 2751097, 2879055, 3614580, 3838740, 4606488, 5502194, 5758110, 7229160, 7677480, 8253291, 11004388, 11516220, 13755485, 16506582, 22008776, 23032440, 24759873, 27510970, 33013164, 41266455, 49519746, 55021940, 66026328, 82532910, 99039492, 110043880, 123799365, 165065820, 198078984, 247598730, 330131640, 495197460, 990394920]

約数ペア:

[(1, 990394920), (2, 495197460), (3, 330131640), (4, 247598730), (5, 198078984), (6, 165065820), (8, 123799365), (9, 110043880), (10, 99039492), (12, 82532910), (15, 66026328), (18, 55021940), (20, 49519746), (24, 41266455), (30, 33013164), (36, 27510970), (40, 24759873), (43, 23032440), (45, 22008776), (60, 16506582), (72, 13755485), (86, 11516220), (90, 11004388), (120, 8253291), (129, 7677480), (137, 7229160), (172, 5758110), (180, 5502194), (215, 4606488), (258, 3838740), (274, 3614580), (344, 2879055), (360, 2751097), (387, 2559160), (411, 2409720), (430, 2303244), (467, 2120760), (516, 1919370), (548, 1807290), (645, 1535496), (685, 1445832), (774, 1279580), (822, 1204860), (860, 1151622), (934, 1060380), (1032, 959685), (1096, 903645), (1233, 803240), (1290, 767748), (1370, 722916), (1401, 706920), (1548, 639790), (1644, 602430), (1720, 575811), (1868, 530190), (1935, 511832), (2055, 481944), (2335, 424152), (2466, 401620), (2580, 383874), (2740, 361458), (2802, 353460), (3096, 319895), (3288, 301215), (3736, 265095), (3870, 255916), (4110, 240972), (4203, 235640), (4670, 212076), (4932, 200810), (5160, 191937), (5480, 180729), (5604, 176730), (5891, 168120), (6165, 160648), (7005, 141384), (7740, 127958), (8220, 120486), (8406, 117820), (9340, 106038), (9864, 100405), (11208, 88365), (11782, 84060), (12330, 80324), (14010, 70692), (15480, 63979), (16440, 60243), (16812, 58910), (17673, 56040), (18680, 53019), (20081, 49320), (21015, 47128), (23564, 42030), (24660, 40162), (28020, 35346), (29455, 33624)]