20981590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8101}}^1$

素因数の和:8152

約数の個数: 32

約数和(自身を含む): 44334144

約数和(自身を除く): 23352554

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 185, 259, 370, 518, 1295, 2590, 8101, 16202, 40505, 56707, 81010, 113414, 283535, 299737, 567070, 599474, 1498685, 2098159, 2997370, 4196318, 10490795, 20981590]

約数ペア:

[(1, 20981590), (2, 10490795), (5, 4196318), (7, 2997370), (10, 2098159), (14, 1498685), (35, 599474), (37, 567070), (70, 299737), (74, 283535), (185, 113414), (259, 81010), (370, 56707), (518, 40505), (1295, 16202), (2590, 8101)]