78928641

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 136857600

約数和(自身を除く): 57928959

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 71, 99, 171, 197, 209, 213, 297, 513, 591, 627, 639, 781, 1349, 1773, 1881, 1917, 2167, 2343, 3743, 4047, 5319, 5643, 6501, 7029, 11229, 12141, 13987, 14839, 19503, 21087, 33687, 36423, 41173, 41961, 44517, 58509, 101061, 123519, 125883, 133551, 153857, 265753, 370557, 377649, 400653, 461571, 797259, 1111671, 1384713, 2391777, 2923283, 4154139, 7175331, 8769849, 26309547, 78928641]

約数ペア:

[(1, 78928641), (3, 26309547), (9, 8769849), (11, 7175331), (19, 4154139), (27, 2923283), (33, 2391777), (57, 1384713), (71, 1111671), (99, 797259), (171, 461571), (197, 400653), (209, 377649), (213, 370557), (297, 265753), (513, 153857), (591, 133551), (627, 125883), (639, 123519), (781, 101061), (1349, 58509), (1773, 44517), (1881, 41961), (1917, 41173), (2167, 36423), (2343, 33687), (3743, 21087), (4047, 19503), (5319, 14839), (5643, 13987), (6501, 12141), (7029, 11229)]