2231390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:392

約数の個数: 32

約数和(自身を含む): 4644864

約数和(自身を除く): 2413474

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 251, 254, 502, 635, 889, 1255, 1270, 1757, 1778, 2510, 3514, 4445, 8785, 8890, 17570, 31877, 63754, 159385, 223139, 318770, 446278, 1115695, 2231390]

約数ペア:

[(1, 2231390), (2, 1115695), (5, 446278), (7, 318770), (10, 223139), (14, 159385), (35, 63754), (70, 31877), (127, 17570), (251, 8890), (254, 8785), (502, 4445), (635, 3514), (889, 2510), (1255, 1778), (1270, 1757)]