256972644

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8737}}^1$

素因数の和:8809

約数の個数: 72

約数和(自身を含む): 699739040

約数和(自身を除く): 442766396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 43, 57, 76, 86, 114, 129, 171, 172, 228, 258, 342, 387, 516, 684, 774, 817, 1548, 1634, 2451, 3268, 4902, 7353, 8737, 9804, 14706, 17474, 26211, 29412, 34948, 52422, 78633, 104844, 157266, 166003, 314532, 332006, 375691, 498009, 664012, 751382, 996018, 1127073, 1494027, 1502764, 1992036, 2254146, 2988054, 3381219, 4508292, 5976108, 6762438, 7138129, 13524876, 14276258, 21414387, 28552516, 42828774, 64243161, 85657548, 128486322, 256972644]

約数ペア:

[(1, 256972644), (2, 128486322), (3, 85657548), (4, 64243161), (6, 42828774), (9, 28552516), (12, 21414387), (18, 14276258), (19, 13524876), (36, 7138129), (38, 6762438), (43, 5976108), (57, 4508292), (76, 3381219), (86, 2988054), (114, 2254146), (129, 1992036), (171, 1502764), (172, 1494027), (228, 1127073), (258, 996018), (342, 751382), (387, 664012), (516, 498009), (684, 375691), (774, 332006), (817, 314532), (1548, 166003), (1634, 157266), (2451, 104844), (3268, 78633), (4902, 52422), (7353, 34948), (8737, 29412), (9804, 26211), (14706, 17474)]