28554890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31379}}^1$

素因数の和:31406

約数の個数: 32

約数和(自身を含む): 63262080

約数和(自身を除く): 34707190

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 31379, 62758, 156895, 219653, 313790, 407927, 439306, 815854, 1098265, 2039635, 2196530, 2855489, 4079270, 5710978, 14277445, 28554890]

約数ペア:

[(1, 28554890), (2, 14277445), (5, 5710978), (7, 4079270), (10, 2855489), (13, 2196530), (14, 2039635), (26, 1098265), (35, 815854), (65, 439306), (70, 407927), (91, 313790), (130, 219653), (182, 156895), (455, 62758), (910, 31379)]