123442620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:568

約数の個数: 192

約数和(自身を含む): 430080000

約数和(自身を除く): 306637380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 31, 35, 38, 42, 57, 60, 62, 70, 76, 84, 93, 95, 105, 114, 124, 133, 140, 155, 186, 190, 210, 217, 228, 266, 285, 310, 372, 380, 399, 420, 434, 465, 499, 532, 570, 589, 620, 651, 665, 798, 868, 930, 998, 1085, 1140, 1178, 1302, 1330, 1497, 1596, 1767, 1860, 1995, 1996, 2170, 2356, 2495, 2604, 2660, 2945, 2994, 3255, 3493, 3534, 3990, 4123, 4340, 4990, 5890, 5988, 6510, 6986, 7068, 7485, 7980, 8246, 8835, 9481, 9980, 10479, 11780, 12369, 13020, 13972, 14970, 15469, 16492, 17465, 17670, 18962, 20615, 20958, 24738, 28443, 29940, 30938, 34930, 35340, 37924, 41230, 41916, 46407, 47405, 49476, 52395, 56886, 61845, 61876, 66367, 69860, 77345, 82460, 92814, 94810, 104790, 108283, 113772, 123690, 132734, 142215, 154690, 185628, 189620, 199101, 209580, 216566, 232035, 247380, 265468, 284430, 293911, 309380, 324849, 331835, 398202, 433132, 464070, 541415, 568860, 587822, 649698, 663670, 796404, 881733, 928140, 995505, 1082830, 1175644, 1299396, 1327340, 1469555, 1624245, 1763466, 1991010, 2057377, 2165660, 2939110, 3248490, 3526932, 3982020, 4114754, 4408665, 5878220, 6172131, 6496980, 8229508, 8817330, 10286885, 12344262, 17634660, 20573770, 24688524, 30860655, 41147540, 61721310, 123442620]

約数ペア:

[(1, 123442620), (2, 61721310), (3, 41147540), (4, 30860655), (5, 24688524), (6, 20573770), (7, 17634660), (10, 12344262), (12, 10286885), (14, 8817330), (15, 8229508), (19, 6496980), (20, 6172131), (21, 5878220), (28, 4408665), (30, 4114754), (31, 3982020), (35, 3526932), (38, 3248490), (42, 2939110), (57, 2165660), (60, 2057377), (62, 1991010), (70, 1763466), (76, 1624245), (84, 1469555), (93, 1327340), (95, 1299396), (105, 1175644), (114, 1082830), (124, 995505), (133, 928140), (140, 881733), (155, 796404), (186, 663670), (190, 649698), (210, 587822), (217, 568860), (228, 541415), (266, 464070), (285, 433132), (310, 398202), (372, 331835), (380, 324849), (399, 309380), (420, 293911), (434, 284430), (465, 265468), (499, 247380), (532, 232035), (570, 216566), (589, 209580), (620, 199101), (651, 189620), (665, 185628), (798, 154690), (868, 142215), (930, 132734), (998, 123690), (1085, 113772), (1140, 108283), (1178, 104790), (1302, 94810), (1330, 92814), (1497, 82460), (1596, 77345), (1767, 69860), (1860, 66367), (1995, 61876), (1996, 61845), (2170, 56886), (2356, 52395), (2495, 49476), (2604, 47405), (2660, 46407), (2945, 41916), (2994, 41230), (3255, 37924), (3493, 35340), (3534, 34930), (3990, 30938), (4123, 29940), (4340, 28443), (4990, 24738), (5890, 20958), (5988, 20615), (6510, 18962), (6986, 17670), (7068, 17465), (7485, 16492), (7980, 15469), (8246, 14970), (8835, 13972), (9481, 13020), (9980, 12369), (10479, 11780)]