1785304880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{5179}}^1$

素因数の和:5362

約数の個数: 80

約数和(自身を含む): 4316390400

約数和(自身を除く): 2531085520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 139, 155, 248, 278, 310, 496, 556, 620, 695, 1112, 1240, 1390, 2224, 2480, 2780, 4309, 5179, 5560, 8618, 10358, 11120, 17236, 20716, 21545, 25895, 34472, 41432, 43090, 51790, 68944, 82864, 86180, 103580, 160549, 172360, 207160, 321098, 344720, 414320, 642196, 719881, 802745, 1284392, 1439762, 1605490, 2568784, 2879524, 3210980, 3599405, 5759048, 6421960, 7198810, 11518096, 12843920, 14397620, 22316311, 28795240, 44632622, 57590480, 89265244, 111581555, 178530488, 223163110, 357060976, 446326220, 892652440, 1785304880]

約数ペア:

[(1, 1785304880), (2, 892652440), (4, 446326220), (5, 357060976), (8, 223163110), (10, 178530488), (16, 111581555), (20, 89265244), (31, 57590480), (40, 44632622), (62, 28795240), (80, 22316311), (124, 14397620), (139, 12843920), (155, 11518096), (248, 7198810), (278, 6421960), (310, 5759048), (496, 3599405), (556, 3210980), (620, 2879524), (695, 2568784), (1112, 1605490), (1240, 1439762), (1390, 1284392), (2224, 802745), (2480, 719881), (2780, 642196), (4309, 414320), (5179, 344720), (5560, 321098), (8618, 207160), (10358, 172360), (11120, 160549), (17236, 103580), (20716, 86180), (21545, 82864), (25895, 68944), (34472, 51790), (41432, 43090)]