28116972

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:919

約数の個数: 72

約数和(自身を含む): 77683424

約数和(自身を除く): 49566452

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 73, 78, 117, 146, 156, 219, 234, 292, 438, 468, 657, 823, 876, 949, 1314, 1646, 1898, 2469, 2628, 2847, 3292, 3796, 4938, 5694, 7407, 8541, 9876, 10699, 11388, 14814, 17082, 21398, 29628, 32097, 34164, 42796, 60079, 64194, 96291, 120158, 128388, 180237, 192582, 240316, 360474, 385164, 540711, 720948, 781027, 1081422, 1562054, 2162844, 2343081, 3124108, 4686162, 7029243, 9372324, 14058486, 28116972]

約数ペア:

[(1, 28116972), (2, 14058486), (3, 9372324), (4, 7029243), (6, 4686162), (9, 3124108), (12, 2343081), (13, 2162844), (18, 1562054), (26, 1081422), (36, 781027), (39, 720948), (52, 540711), (73, 385164), (78, 360474), (117, 240316), (146, 192582), (156, 180237), (219, 128388), (234, 120158), (292, 96291), (438, 64194), (468, 60079), (657, 42796), (823, 34164), (876, 32097), (949, 29628), (1314, 21398), (1646, 17082), (1898, 14814), (2469, 11388), (2628, 10699), (2847, 9876), (3292, 8541), (3796, 7407), (4938, 5694)]