646825605

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{19973}}^1$

素因数の和:20125

約数の個数: 32

約数和(自身を含む): 1104482304

約数和(自身を除く): 457656699

約数列:

[1, 3, 5, 15, 17, 51, 85, 127, 255, 381, 635, 1905, 2159, 6477, 10795, 19973, 32385, 59919, 99865, 299595, 339541, 1018623, 1697705, 2536571, 5093115, 7609713, 12682855, 38048565, 43121707, 129365121, 215608535, 646825605]

約数ペア:

[(1, 646825605), (3, 215608535), (5, 129365121), (15, 43121707), (17, 38048565), (51, 12682855), (85, 7609713), (127, 5093115), (255, 2536571), (381, 1697705), (635, 1018623), (1905, 339541), (2159, 299595), (6477, 99865), (10795, 59919), (19973, 32385)]