157212560

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19457}}^1$

素因数の和:19571

約数の個数: 40

約数和(自身を含む): 369157176

約数和(自身を除く): 211944616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 19457, 38914, 77828, 97285, 155656, 194570, 311312, 389140, 778280, 1556560, 1965157, 3930314, 7860628, 9825785, 15721256, 19651570, 31442512, 39303140, 78606280, 157212560]

約数ペア:

[(1, 157212560), (2, 78606280), (4, 39303140), (5, 31442512), (8, 19651570), (10, 15721256), (16, 9825785), (20, 7860628), (40, 3930314), (80, 1965157), (101, 1556560), (202, 778280), (404, 389140), (505, 311312), (808, 194570), (1010, 155656), (1616, 97285), (2020, 77828), (4040, 38914), (8080, 19457)]