256259844

素因数分解:

$2^2\times 3^2\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{617}}^1$

素因数の和:849

約数の個数: 72

約数和(自身を含む): 661358880

約数和(自身を除く): 405099036

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 83, 139, 166, 249, 278, 332, 417, 498, 556, 617, 747, 834, 996, 1234, 1251, 1494, 1668, 1851, 2468, 2502, 2988, 3702, 5004, 5553, 7404, 11106, 11537, 22212, 23074, 34611, 46148, 51211, 69222, 85763, 102422, 103833, 138444, 153633, 171526, 204844, 207666, 257289, 307266, 343052, 415332, 460899, 514578, 614532, 771867, 921798, 1029156, 1543734, 1843596, 3087468, 7118329, 14236658, 21354987, 28473316, 42709974, 64064961, 85419948, 128129922, 256259844]

約数ペア:

[(1, 256259844), (2, 128129922), (3, 85419948), (4, 64064961), (6, 42709974), (9, 28473316), (12, 21354987), (18, 14236658), (36, 7118329), (83, 3087468), (139, 1843596), (166, 1543734), (249, 1029156), (278, 921798), (332, 771867), (417, 614532), (498, 514578), (556, 460899), (617, 415332), (747, 343052), (834, 307266), (996, 257289), (1234, 207666), (1251, 204844), (1494, 171526), (1668, 153633), (1851, 138444), (2468, 103833), (2502, 102422), (2988, 85763), (3702, 69222), (5004, 51211), (5553, 46148), (7404, 34611), (11106, 23074), (11537, 22212)]