30981844

素因数分解:

$2^2\times {\mathrm{43}}^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:220

約数の個数: 36

約数和(自身を含む): 57244320

約数和(自身を除く): 26262476

約数列:

[1, 2, 4, 43, 59, 71, 86, 118, 142, 172, 236, 284, 1849, 2537, 3053, 3698, 4189, 5074, 6106, 7396, 8378, 10148, 12212, 16756, 109091, 131279, 180127, 218182, 262558, 360254, 436364, 525116, 720508, 7745461, 15490922, 30981844]

約数ペア:

[(1, 30981844), (2, 15490922), (4, 7745461), (43, 720508), (59, 525116), (71, 436364), (86, 360254), (118, 262558), (142, 218182), (172, 180127), (236, 131279), (284, 109091), (1849, 16756), (2537, 12212), (3053, 10148), (3698, 8378), (4189, 7396), (5074, 6106)]