65490516

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19991}}^1$

素因数の和:20021

約数の個数: 72

約数和(自身を含む): 203758464

約数和(自身を除く): 138267948

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 19991, 39982, 59973, 79964, 119946, 139937, 179919, 239892, 259883, 279874, 359838, 419811, 519766, 559748, 719676, 779649, 839622, 1039532, 1259433, 1559298, 1679244, 1819181, 2338947, 2518866, 3118596, 3638362, 4677894, 5037732, 5457543, 7276724, 9355788, 10915086, 16372629, 21830172, 32745258, 65490516]

約数ペア:

[(1, 65490516), (2, 32745258), (3, 21830172), (4, 16372629), (6, 10915086), (7, 9355788), (9, 7276724), (12, 5457543), (13, 5037732), (14, 4677894), (18, 3638362), (21, 3118596), (26, 2518866), (28, 2338947), (36, 1819181), (39, 1679244), (42, 1559298), (52, 1259433), (63, 1039532), (78, 839622), (84, 779649), (91, 719676), (117, 559748), (126, 519766), (156, 419811), (182, 359838), (234, 279874), (252, 259883), (273, 239892), (364, 179919), (468, 139937), (546, 119946), (819, 79964), (1092, 59973), (1638, 39982), (3276, 19991)]