257476395

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1\times {\mathrm{2473}}^1$

素因数の和:3123

約数の個数: 32

約数和(自身を含む): 450307584

約数和(自身を除く): 192831189

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 631, 1893, 2473, 3155, 6941, 7419, 9465, 12365, 20823, 27203, 34705, 37095, 81609, 104115, 136015, 408045, 1560463, 4681389, 7802315, 17165093, 23406945, 51495279, 85825465, 257476395]

約数ペア:

[(1, 257476395), (3, 85825465), (5, 51495279), (11, 23406945), (15, 17165093), (33, 7802315), (55, 4681389), (165, 1560463), (631, 408045), (1893, 136015), (2473, 104115), (3155, 81609), (6941, 37095), (7419, 34705), (9465, 27203), (12365, 20823)]