78145340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{42937}}^1$

素因数の和:42966

約数の個数: 48

約数和(自身を含む): 201980352

約数和(自身を除く): 123835012

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 42937, 85874, 171748, 214685, 300559, 429370, 558181, 601118, 858740, 1116362, 1202236, 1502795, 2232724, 2790905, 3005590, 3907267, 5581810, 6011180, 7814534, 11163620, 15629068, 19536335, 39072670, 78145340]

約数ペア:

[(1, 78145340), (2, 39072670), (4, 19536335), (5, 15629068), (7, 11163620), (10, 7814534), (13, 6011180), (14, 5581810), (20, 3907267), (26, 3005590), (28, 2790905), (35, 2232724), (52, 1502795), (65, 1202236), (70, 1116362), (91, 858740), (130, 601118), (140, 558181), (182, 429370), (260, 300559), (364, 214685), (455, 171748), (910, 85874), (1820, 42937)]