28879605

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 25863435

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 71, 115, 131, 135, 207, 213, 345, 355, 393, 621, 639, 655, 1035, 1065, 1179, 1633, 1917, 1965, 3013, 3105, 3195, 3537, 4899, 5895, 8165, 9039, 9301, 9585, 14697, 15065, 17685, 24495, 27117, 27903, 44091, 45195, 46505, 73485, 81351, 83709, 135585, 139515, 213923, 220455, 251127, 406755, 418545, 641769, 1069615, 1255635, 1925307, 3208845, 5775921, 9626535, 28879605]

約数ペア:

[(1, 28879605), (3, 9626535), (5, 5775921), (9, 3208845), (15, 1925307), (23, 1255635), (27, 1069615), (45, 641769), (69, 418545), (71, 406755), (115, 251127), (131, 220455), (135, 213923), (207, 139515), (213, 135585), (345, 83709), (355, 81351), (393, 73485), (621, 46505), (639, 45195), (655, 44091), (1035, 27903), (1065, 27117), (1179, 24495), (1633, 17685), (1917, 15065), (1965, 14697), (3013, 9585), (3105, 9301), (3195, 9039), (3537, 8165), (4899, 5895)]