209688080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{374443}}^1$

素因数の和:374463

約数の個数: 40

約数和(自身を含む): 557172672

約数和(自身を除く): 347484592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 374443, 748886, 1497772, 1872215, 2621101, 2995544, 3744430, 5242202, 5991088, 7488860, 10484404, 13105505, 14977720, 20968808, 26211010, 29955440, 41937616, 52422020, 104844040, 209688080]

約数ペア:

[(1, 209688080), (2, 104844040), (4, 52422020), (5, 41937616), (7, 29955440), (8, 26211010), (10, 20968808), (14, 14977720), (16, 13105505), (20, 10484404), (28, 7488860), (35, 5991088), (40, 5242202), (56, 3744430), (70, 2995544), (80, 2621101), (112, 1872215), (140, 1497772), (280, 748886), (560, 374443)]