204080838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{857}}^1$

素因数の和:989

約数の個数: 64

約数和(自身を含む): 456648192

約数和(自身を除く): 252567354

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 71, 78, 86, 129, 142, 213, 258, 426, 559, 857, 923, 1118, 1677, 1714, 1846, 2571, 2769, 3053, 3354, 5142, 5538, 6106, 9159, 11141, 18318, 22282, 33423, 36851, 39689, 60847, 66846, 73702, 79378, 110553, 119067, 121694, 182541, 221106, 238134, 365082, 479063, 791011, 958126, 1437189, 1582022, 2373033, 2616421, 2874378, 4746066, 5232842, 7849263, 15698526, 34013473, 68026946, 102040419, 204080838]

約数ペア:

[(1, 204080838), (2, 102040419), (3, 68026946), (6, 34013473), (13, 15698526), (26, 7849263), (39, 5232842), (43, 4746066), (71, 2874378), (78, 2616421), (86, 2373033), (129, 1582022), (142, 1437189), (213, 958126), (258, 791011), (426, 479063), (559, 365082), (857, 238134), (923, 221106), (1118, 182541), (1677, 121694), (1714, 119067), (1846, 110553), (2571, 79378), (2769, 73702), (3053, 66846), (3354, 60847), (5142, 39689), (5538, 36851), (6106, 33423), (9159, 22282), (11141, 18318)]