215460740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{23887}}^1$

素因数の和:23948

約数の個数: 48

約数和(自身を含む): 505661184

約数和(自身を除く): 290200444

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 23887, 47774, 95548, 119435, 238870, 262757, 477740, 525514, 979367, 1051028, 1313785, 1958734, 2627570, 3917468, 4896835, 5255140, 9793670, 10773037, 19587340, 21546074, 43092148, 53865185, 107730370, 215460740]

約数ペア:

[(1, 215460740), (2, 107730370), (4, 53865185), (5, 43092148), (10, 21546074), (11, 19587340), (20, 10773037), (22, 9793670), (41, 5255140), (44, 4896835), (55, 3917468), (82, 2627570), (110, 1958734), (164, 1313785), (205, 1051028), (220, 979367), (410, 525514), (451, 477740), (820, 262757), (902, 238870), (1804, 119435), (2255, 95548), (4510, 47774), (9020, 23887)]