201249655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{331}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 268489728

約数和(自身を除く): 67240073

約数列:

[1, 5, 17, 23, 85, 115, 311, 331, 391, 1555, 1655, 1955, 5287, 5627, 7153, 7613, 26435, 28135, 35765, 38065, 102941, 121601, 129421, 514705, 608005, 647105, 1749997, 2367643, 8749985, 11838215, 40249931, 201249655]

約数ペア:

[(1, 201249655), (5, 40249931), (17, 11838215), (23, 8749985), (85, 2367643), (115, 1749997), (311, 647105), (331, 608005), (391, 514705), (1555, 129421), (1655, 121601), (1955, 102941), (5287, 38065), (5627, 35765), (7153, 28135), (7613, 26435)]