256853628

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2741}}^1$

素因数の和:2907

約数の個数: 72

約数和(自身を含む): 688680720

約数和(自身を除く): 431827092

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 137, 171, 228, 274, 342, 411, 548, 684, 822, 1233, 1644, 2466, 2603, 2741, 4932, 5206, 5482, 7809, 8223, 10412, 10964, 15618, 16446, 23427, 24669, 31236, 32892, 46854, 49338, 52079, 93708, 98676, 104158, 156237, 208316, 312474, 375517, 468711, 624948, 751034, 937422, 1126551, 1502068, 1874844, 2253102, 3379653, 4506204, 6759306, 7134823, 13518612, 14269646, 21404469, 28539292, 42808938, 64213407, 85617876, 128426814, 256853628]

約数ペア:

[(1, 256853628), (2, 128426814), (3, 85617876), (4, 64213407), (6, 42808938), (9, 28539292), (12, 21404469), (18, 14269646), (19, 13518612), (36, 7134823), (38, 6759306), (57, 4506204), (76, 3379653), (114, 2253102), (137, 1874844), (171, 1502068), (228, 1126551), (274, 937422), (342, 751034), (411, 624948), (548, 468711), (684, 375517), (822, 312474), (1233, 208316), (1644, 156237), (2466, 104158), (2603, 98676), (2741, 93708), (4932, 52079), (5206, 49338), (5482, 46854), (7809, 32892), (8223, 31236), (10412, 24669), (10964, 23427), (15618, 16446)]