398532860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{164683}}^1$

素因数の和:164714

約数の個数: 36

約数和(自身を含む): 919924824

約数和(自身を除く): 521391964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 164683, 329366, 658732, 823415, 1646830, 1811513, 3293660, 3623026, 7246052, 9057565, 18115130, 19926643, 36230260, 39853286, 79706572, 99633215, 199266430, 398532860]

約数ペア:

[(1, 398532860), (2, 199266430), (4, 99633215), (5, 79706572), (10, 39853286), (11, 36230260), (20, 19926643), (22, 18115130), (44, 9057565), (55, 7246052), (110, 3623026), (121, 3293660), (220, 1811513), (242, 1646830), (484, 823415), (605, 658732), (1210, 329366), (2420, 164683)]