39856845

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 74824128

約数和(自身を除く): 34967283

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 211, 245, 257, 633, 735, 771, 1055, 1285, 1477, 1799, 3165, 3855, 4431, 5397, 7385, 8995, 10339, 12593, 22155, 26985, 31017, 37779, 51695, 54227, 62965, 155085, 162681, 188895, 271135, 379589, 813405, 1138767, 1897945, 2657123, 5693835, 7971369, 13285615, 39856845]

約数ペア:

[(1, 39856845), (3, 13285615), (5, 7971369), (7, 5693835), (15, 2657123), (21, 1897945), (35, 1138767), (49, 813405), (105, 379589), (147, 271135), (211, 188895), (245, 162681), (257, 155085), (633, 62965), (735, 54227), (771, 51695), (1055, 37779), (1285, 31017), (1477, 26985), (1799, 22155), (3165, 12593), (3855, 10339), (4431, 8995), (5397, 7385)]