77647640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4139}}^1$

素因数の和:4224

約数の個数: 64

約数和(自身を含む): 202694400

約数和(自身を除く): 125046760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2345, 2680, 3752, 4139, 4690, 8278, 9380, 16556, 18760, 20695, 28973, 33112, 41390, 57946, 82780, 115892, 144865, 165560, 231784, 277313, 289730, 554626, 579460, 1109252, 1158920, 1386565, 1941191, 2218504, 2773130, 3882382, 5546260, 7764764, 9705955, 11092520, 15529528, 19411910, 38823820, 77647640]

約数ペア:

[(1, 77647640), (2, 38823820), (4, 19411910), (5, 15529528), (7, 11092520), (8, 9705955), (10, 7764764), (14, 5546260), (20, 3882382), (28, 2773130), (35, 2218504), (40, 1941191), (56, 1386565), (67, 1158920), (70, 1109252), (134, 579460), (140, 554626), (268, 289730), (280, 277313), (335, 231784), (469, 165560), (536, 144865), (670, 115892), (938, 82780), (1340, 57946), (1876, 41390), (2345, 33112), (2680, 28973), (3752, 20695), (4139, 18760), (4690, 16556), (8278, 9380)]