81587770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 167878656

約数和(自身を除く): 86290886

約数列:

[1, 2, 5, 10, 11, 22, 43, 47, 55, 86, 94, 110, 215, 235, 367, 430, 470, 473, 517, 734, 946, 1034, 1835, 2021, 2365, 2585, 3670, 4037, 4042, 4730, 5170, 8074, 10105, 15781, 17249, 20185, 20210, 22231, 31562, 34498, 40370, 44462, 78905, 86245, 111155, 157810, 172490, 173591, 189739, 222310, 347182, 379478, 741707, 867955, 948695, 1483414, 1735910, 1897390, 3708535, 7417070, 8158777, 16317554, 40793885, 81587770]

約数ペア:

[(1, 81587770), (2, 40793885), (5, 16317554), (10, 8158777), (11, 7417070), (22, 3708535), (43, 1897390), (47, 1735910), (55, 1483414), (86, 948695), (94, 867955), (110, 741707), (215, 379478), (235, 347182), (367, 222310), (430, 189739), (470, 173591), (473, 172490), (517, 157810), (734, 111155), (946, 86245), (1034, 78905), (1835, 44462), (2021, 40370), (2365, 34498), (2585, 31562), (3670, 22231), (4037, 20210), (4042, 20185), (4730, 17249), (5170, 15781), (8074, 10105)]