209777745

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1\times {\mathrm{809}}^1$

素因数の和:1169

約数の個数: 32

約数和(自身を含む): 342921600

約数和(自身を除く): 133143855

約数列:

[1, 3, 5, 15, 59, 177, 293, 295, 809, 879, 885, 1465, 2427, 4045, 4395, 12135, 17287, 47731, 51861, 86435, 143193, 237037, 238655, 259305, 711111, 715965, 1185185, 3555555, 13985183, 41955549, 69925915, 209777745]

約数ペア:

[(1, 209777745), (3, 69925915), (5, 41955549), (15, 13985183), (59, 3555555), (177, 1185185), (293, 715965), (295, 711111), (809, 259305), (879, 238655), (885, 237037), (1465, 143193), (2427, 86435), (4045, 51861), (4395, 47731), (12135, 17287)]