261531570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{17683}}^1$

素因数の和:17739

約数の個数: 64

約数和(自身を含む): 687553920

約数和(自身を除く): 426022350

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 29, 30, 34, 51, 58, 85, 87, 102, 145, 170, 174, 255, 290, 435, 493, 510, 870, 986, 1479, 2465, 2958, 4930, 7395, 14790, 17683, 35366, 53049, 88415, 106098, 176830, 265245, 300611, 512807, 530490, 601222, 901833, 1025614, 1503055, 1538421, 1803666, 2564035, 3006110, 3076842, 4509165, 5128070, 7692105, 8717719, 9018330, 15384210, 17435438, 26153157, 43588595, 52306314, 87177190, 130765785, 261531570]

約数ペア:

[(1, 261531570), (2, 130765785), (3, 87177190), (5, 52306314), (6, 43588595), (10, 26153157), (15, 17435438), (17, 15384210), (29, 9018330), (30, 8717719), (34, 7692105), (51, 5128070), (58, 4509165), (85, 3076842), (87, 3006110), (102, 2564035), (145, 1803666), (170, 1538421), (174, 1503055), (255, 1025614), (290, 901833), (435, 601222), (493, 530490), (510, 512807), (870, 300611), (986, 265245), (1479, 176830), (2465, 106098), (2958, 88415), (4930, 53049), (7395, 35366), (14790, 17683)]