20216474680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{2437}}^1$

素因数の和:2669

約数の個数: 128

約数和(自身を含む): 48532193280

約数和(自身を除く): 28315718600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 71, 92, 115, 127, 142, 184, 230, 254, 284, 355, 460, 508, 568, 635, 710, 920, 1016, 1270, 1420, 1633, 2437, 2540, 2840, 2921, 3266, 4874, 5080, 5842, 6532, 8165, 9017, 9748, 11684, 12185, 13064, 14605, 16330, 18034, 19496, 23368, 24370, 29210, 32660, 36068, 45085, 48740, 56051, 58420, 65320, 72136, 90170, 97480, 112102, 116840, 173027, 180340, 207391, 224204, 280255, 309499, 346054, 360680, 414782, 448408, 560510, 618998, 692108, 829564, 865135, 1036955, 1121020, 1237996, 1384216, 1547495, 1659128, 1730270, 2073910, 2242040, 2475992, 3094990, 3460540, 3979621, 4147820, 6189980, 6921080, 7118477, 7959242, 8295640, 12379960, 14236954, 15918484, 19898105, 21974429, 28473908, 31836968, 35592385, 39796210, 43948858, 56947816, 71184770, 79592420, 87897716, 109872145, 142369540, 159184840, 175795432, 219744290, 284739080, 439488580, 505411867, 878977160, 1010823734, 2021647468, 2527059335, 4043294936, 5054118670, 10108237340, 20216474680]

約数ペア:

[(1, 20216474680), (2, 10108237340), (4, 5054118670), (5, 4043294936), (8, 2527059335), (10, 2021647468), (20, 1010823734), (23, 878977160), (40, 505411867), (46, 439488580), (71, 284739080), (92, 219744290), (115, 175795432), (127, 159184840), (142, 142369540), (184, 109872145), (230, 87897716), (254, 79592420), (284, 71184770), (355, 56947816), (460, 43948858), (508, 39796210), (568, 35592385), (635, 31836968), (710, 28473908), (920, 21974429), (1016, 19898105), (1270, 15918484), (1420, 14236954), (1633, 12379960), (2437, 8295640), (2540, 7959242), (2840, 7118477), (2921, 6921080), (3266, 6189980), (4874, 4147820), (5080, 3979621), (5842, 3460540), (6532, 3094990), (8165, 2475992), (9017, 2242040), (9748, 2073910), (11684, 1730270), (12185, 1659128), (13064, 1547495), (14605, 1384216), (16330, 1237996), (18034, 1121020), (19496, 1036955), (23368, 865135), (24370, 829564), (29210, 692108), (32660, 618998), (36068, 560510), (45085, 448408), (48740, 414782), (56051, 360680), (58420, 346054), (65320, 309499), (72136, 280255), (90170, 224204), (97480, 207391), (112102, 180340), (116840, 173027)]