156939440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{280249}}^1$

素因数の和:280269

約数の個数: 40

約数和(自身を含む): 417012000

約数和(自身を除く): 260072560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 280249, 560498, 1120996, 1401245, 1961743, 2241992, 2802490, 3923486, 4483984, 5604980, 7846972, 9808715, 11209960, 15693944, 19617430, 22419920, 31387888, 39234860, 78469720, 156939440]

約数ペア:

[(1, 156939440), (2, 78469720), (4, 39234860), (5, 31387888), (7, 22419920), (8, 19617430), (10, 15693944), (14, 11209960), (16, 9808715), (20, 7846972), (28, 5604980), (35, 4483984), (40, 3923486), (56, 2802490), (70, 2241992), (80, 1961743), (112, 1401245), (140, 1120996), (280, 560498), (560, 280249)]