18505265

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 24748416

約数和(自身を除く): 6243151

約数列:

[1, 5, 17, 43, 61, 83, 85, 215, 305, 415, 731, 1037, 1411, 2623, 3569, 3655, 5063, 5185, 7055, 13115, 17845, 25315, 44591, 60673, 86071, 217709, 222955, 303365, 430355, 1088545, 3701053, 18505265]

約数ペア:

[(1, 18505265), (5, 3701053), (17, 1088545), (43, 430355), (61, 303365), (83, 222955), (85, 217709), (215, 86071), (305, 60673), (415, 44591), (731, 25315), (1037, 17845), (1411, 13115), (2623, 7055), (3569, 5185), (3655, 5063)]