128309020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{13679}}^1$

素因数の和:13762

約数の個数: 48

約数和(自身を含む): 312560640

約数和(自身を除く): 184251620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2345, 4690, 9380, 13679, 27358, 54716, 68395, 95753, 136790, 191506, 273580, 383012, 478765, 916493, 957530, 1832986, 1915060, 3665972, 4582465, 6415451, 9164930, 12830902, 18329860, 25661804, 32077255, 64154510, 128309020]

約数ペア:

[(1, 128309020), (2, 64154510), (4, 32077255), (5, 25661804), (7, 18329860), (10, 12830902), (14, 9164930), (20, 6415451), (28, 4582465), (35, 3665972), (67, 1915060), (70, 1832986), (134, 957530), (140, 916493), (268, 478765), (335, 383012), (469, 273580), (670, 191506), (938, 136790), (1340, 95753), (1876, 68395), (2345, 54716), (4690, 27358), (9380, 13679)]