7640440

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{761}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 17282160

約数和(自身を除く): 9641720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 761, 1004, 1255, 1522, 2008, 2510, 3044, 3805, 5020, 6088, 7610, 10040, 15220, 30440, 191011, 382022, 764044, 955055, 1528088, 1910110, 3820220, 7640440]

約数ペア:

[(1, 7640440), (2, 3820220), (4, 1910110), (5, 1528088), (8, 955055), (10, 764044), (20, 382022), (40, 191011), (251, 30440), (502, 15220), (761, 10040), (1004, 7610), (1255, 6088), (1522, 5020), (2008, 3805), (2510, 3044)]