261070120

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{26003}}^1$

素因数の和:26265

約数の個数: 32

約数和(自身を含む): 589770720

約数和(自身を除く): 328700600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 10040, 26003, 52006, 104012, 130015, 208024, 260030, 520060, 1040120, 6526753, 13053506, 26107012, 32633765, 52214024, 65267530, 130535060, 261070120]

約数ペア:

[(1, 261070120), (2, 130535060), (4, 65267530), (5, 52214024), (8, 32633765), (10, 26107012), (20, 13053506), (40, 6526753), (251, 1040120), (502, 520060), (1004, 260030), (1255, 208024), (2008, 130015), (2510, 104012), (5020, 52006), (10040, 26003)]