20771641215

素因数分解:

$3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{787}}^1$

素因数の和:1380

約数の個数: 112

約数和(自身を含む): 40370103648

約数和(自身を除く): 19598462433

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 557, 585, 729, 787, 1053, 1215, 1671, 1755, 2361, 2785, 3159, 3645, 3935, 5013, 5265, 7083, 7241, 8355, 9477, 10231, 11805, 15039, 15795, 21249, 21723, 25065, 30693, 35415, 36205, 45117, 47385, 51155, 63747, 65169, 75195, 92079, 106245, 108615, 135351, 153465, 191241, 195507, 225585, 276237, 318735, 325845, 406053, 438359, 460395, 573723, 586521, 676755, 828711, 956205, 977535, 1315077, 1381185, 1759563, 2030265, 2191795, 2486133, 2868615, 2932605, 3945231, 4143555, 5278689, 5698667, 6575385, 7458399, 8797815, 11835693, 12430665, 17096001, 19726155, 26393445, 28493335, 35507079, 37291995, 51288003, 59178465, 85480005, 106521237, 153864009, 177535395, 256440015, 319563711, 461592027, 532606185, 769320045, 1384776081, 1597818555, 2307960135, 4154328243, 6923880405, 20771641215]

約数ペア:

[(1, 20771641215), (3, 6923880405), (5, 4154328243), (9, 2307960135), (13, 1597818555), (15, 1384776081), (27, 769320045), (39, 532606185), (45, 461592027), (65, 319563711), (81, 256440015), (117, 177535395), (135, 153864009), (195, 106521237), (243, 85480005), (351, 59178465), (405, 51288003), (557, 37291995), (585, 35507079), (729, 28493335), (787, 26393445), (1053, 19726155), (1215, 17096001), (1671, 12430665), (1755, 11835693), (2361, 8797815), (2785, 7458399), (3159, 6575385), (3645, 5698667), (3935, 5278689), (5013, 4143555), (5265, 3945231), (7083, 2932605), (7241, 2868615), (8355, 2486133), (9477, 2191795), (10231, 2030265), (11805, 1759563), (15039, 1381185), (15795, 1315077), (21249, 977535), (21723, 956205), (25065, 828711), (30693, 676755), (35415, 586521), (36205, 573723), (45117, 460395), (47385, 438359), (51155, 406053), (63747, 325845), (65169, 318735), (75195, 276237), (92079, 225585), (106245, 195507), (108615, 191241), (135351, 153465)]