261330522

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{599}}^1$

素因数の和:755

約数の個数: 64

約数和(自身を含む): 570240000

約数和(自身を除く): 308909478

約数列:

[1, 2, 3, 6, 19, 38, 43, 57, 86, 89, 114, 129, 178, 258, 267, 534, 599, 817, 1198, 1634, 1691, 1797, 2451, 3382, 3594, 3827, 4902, 5073, 7654, 10146, 11381, 11481, 22762, 22962, 25757, 34143, 51514, 53311, 68286, 72713, 77271, 106622, 145426, 154542, 159933, 218139, 319866, 436278, 489383, 978766, 1012909, 1468149, 2025818, 2292373, 2936298, 3038727, 4584746, 6077454, 6877119, 13754238, 43555087, 87110174, 130665261, 261330522]

約数ペア:

[(1, 261330522), (2, 130665261), (3, 87110174), (6, 43555087), (19, 13754238), (38, 6877119), (43, 6077454), (57, 4584746), (86, 3038727), (89, 2936298), (114, 2292373), (129, 2025818), (178, 1468149), (258, 1012909), (267, 978766), (534, 489383), (599, 436278), (817, 319866), (1198, 218139), (1634, 159933), (1691, 154542), (1797, 145426), (2451, 106622), (3382, 77271), (3594, 72713), (3827, 68286), (4902, 53311), (5073, 51514), (7654, 34143), (10146, 25757), (11381, 22962), (11481, 22762)]