128766591

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2699}}^1$

素因数の和:2761

約数の個数: 40

約数和(自身を含む): 209088000

約数和(自身を除く): 80321409

約数列:

[1, 3, 9, 19, 27, 31, 57, 81, 93, 171, 279, 513, 589, 837, 1539, 1767, 2511, 2699, 5301, 8097, 15903, 24291, 47709, 51281, 72873, 83669, 153843, 218619, 251007, 461529, 753021, 1384587, 1589711, 2259063, 4153761, 4769133, 6777189, 14307399, 42922197, 128766591]

約数ペア:

[(1, 128766591), (3, 42922197), (9, 14307399), (19, 6777189), (27, 4769133), (31, 4153761), (57, 2259063), (81, 1589711), (93, 1384587), (171, 753021), (279, 461529), (513, 251007), (589, 218619), (837, 153843), (1539, 83669), (1767, 72873), (2511, 51281), (2699, 47709), (5301, 24291), (8097, 15903)]