261914145

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{12589}}^1$

素因数の和:12689

約数の個数: 32

約数和(自身を含む): 447196800

約数和(自身を除く): 185282655

約数列:

[1, 3, 5, 15, 19, 57, 73, 95, 219, 285, 365, 1095, 1387, 4161, 6935, 12589, 20805, 37767, 62945, 188835, 239191, 717573, 918997, 1195955, 2756991, 3587865, 4594985, 13784955, 17460943, 52382829, 87304715, 261914145]

約数ペア:

[(1, 261914145), (3, 87304715), (5, 52382829), (15, 17460943), (19, 13784955), (57, 4594985), (73, 3587865), (95, 2756991), (219, 1195955), (285, 918997), (365, 717573), (1095, 239191), (1387, 188835), (4161, 62945), (6935, 37767), (12589, 20805)]