320938920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{229}}^2$

素因数の和:492

約数の個数: 144

約数和(自身を含む): 1109251260

約数和(自身を除く): 788312340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 229, 255, 306, 340, 360, 408, 458, 510, 612, 680, 687, 765, 916, 1020, 1145, 1224, 1374, 1530, 1832, 2040, 2061, 2290, 2748, 3060, 3435, 3893, 4122, 4580, 5496, 6120, 6870, 7786, 8244, 9160, 10305, 11679, 13740, 15572, 16488, 19465, 20610, 23358, 27480, 31144, 35037, 38930, 41220, 46716, 52441, 58395, 70074, 77860, 82440, 93432, 104882, 116790, 140148, 155720, 157323, 175185, 209764, 233580, 262205, 280296, 314646, 350370, 419528, 467160, 471969, 524410, 629292, 700740, 786615, 891497, 943938, 1048820, 1258584, 1401480, 1573230, 1782994, 1887876, 2097640, 2359845, 2674491, 3146460, 3565988, 3775752, 4457485, 4719690, 5348982, 6292920, 7131976, 8023473, 8914970, 9439380, 10697964, 13372455, 16046946, 17829940, 18878760, 21395928, 26744910, 32093892, 35659880, 40117365, 53489820, 64187784, 80234730, 106979640, 160469460, 320938920]

約数ペア:

[(1, 320938920), (2, 160469460), (3, 106979640), (4, 80234730), (5, 64187784), (6, 53489820), (8, 40117365), (9, 35659880), (10, 32093892), (12, 26744910), (15, 21395928), (17, 18878760), (18, 17829940), (20, 16046946), (24, 13372455), (30, 10697964), (34, 9439380), (36, 8914970), (40, 8023473), (45, 7131976), (51, 6292920), (60, 5348982), (68, 4719690), (72, 4457485), (85, 3775752), (90, 3565988), (102, 3146460), (120, 2674491), (136, 2359845), (153, 2097640), (170, 1887876), (180, 1782994), (204, 1573230), (229, 1401480), (255, 1258584), (306, 1048820), (340, 943938), (360, 891497), (408, 786615), (458, 700740), (510, 629292), (612, 524410), (680, 471969), (687, 467160), (765, 419528), (916, 350370), (1020, 314646), (1145, 280296), (1224, 262205), (1374, 233580), (1530, 209764), (1832, 175185), (2040, 157323), (2061, 155720), (2290, 140148), (2748, 116790), (3060, 104882), (3435, 93432), (3893, 82440), (4122, 77860), (4580, 70074), (5496, 58395), (6120, 52441), (6870, 46716), (7786, 41220), (8244, 38930), (9160, 35037), (10305, 31144), (11679, 27480), (13740, 23358), (15572, 20610), (16488, 19465)]