289702480

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1993}}^1$

素因数の和:2108

約数の個数: 80

約数和(自身を含む): 712097280

約数和(自身を除く): 422394800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 79, 80, 92, 115, 158, 184, 230, 316, 368, 395, 460, 632, 790, 920, 1264, 1580, 1817, 1840, 1993, 3160, 3634, 3986, 6320, 7268, 7972, 9085, 9965, 14536, 15944, 18170, 19930, 29072, 31888, 36340, 39860, 45839, 72680, 79720, 91678, 145360, 157447, 159440, 183356, 229195, 314894, 366712, 458390, 629788, 733424, 787235, 916780, 1259576, 1574470, 1833560, 2519152, 3148940, 3621281, 3667120, 6297880, 7242562, 12595760, 14485124, 18106405, 28970248, 36212810, 57940496, 72425620, 144851240, 289702480]

約数ペア:

[(1, 289702480), (2, 144851240), (4, 72425620), (5, 57940496), (8, 36212810), (10, 28970248), (16, 18106405), (20, 14485124), (23, 12595760), (40, 7242562), (46, 6297880), (79, 3667120), (80, 3621281), (92, 3148940), (115, 2519152), (158, 1833560), (184, 1574470), (230, 1259576), (316, 916780), (368, 787235), (395, 733424), (460, 629788), (632, 458390), (790, 366712), (920, 314894), (1264, 229195), (1580, 183356), (1817, 159440), (1840, 157447), (1993, 145360), (3160, 91678), (3634, 79720), (3986, 72680), (6320, 45839), (7268, 39860), (7972, 36340), (9085, 31888), (9965, 29072), (14536, 19930), (15944, 18170)]