20940328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1439}}^1$

素因数の和:1569

約数の個数: 32

約数和(自身を含む): 41990400

約数和(自身を除く): 21050072

約数列:

[1, 2, 4, 8, 17, 34, 68, 107, 136, 214, 428, 856, 1439, 1819, 2878, 3638, 5756, 7276, 11512, 14552, 24463, 48926, 97852, 153973, 195704, 307946, 615892, 1231784, 2617541, 5235082, 10470164, 20940328]

約数ペア:

[(1, 20940328), (2, 10470164), (4, 5235082), (8, 2617541), (17, 1231784), (34, 615892), (68, 307946), (107, 195704), (136, 153973), (214, 97852), (428, 48926), (856, 24463), (1439, 14552), (1819, 11512), (2878, 7276), (3638, 5756)]