42804280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 99260640

約数和(自身を除く): 56456360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 107, 137, 146, 214, 274, 292, 365, 428, 535, 548, 584, 685, 730, 856, 1070, 1096, 1370, 1460, 2140, 2740, 2920, 4280, 5480, 7811, 10001, 14659, 15622, 20002, 29318, 31244, 39055, 40004, 50005, 58636, 62488, 73295, 78110, 80008, 100010, 117272, 146590, 156220, 200020, 293180, 312440, 400040, 586360, 1070107, 2140214, 4280428, 5350535, 8560856, 10701070, 21402140, 42804280]

約数ペア:

[(1, 42804280), (2, 21402140), (4, 10701070), (5, 8560856), (8, 5350535), (10, 4280428), (20, 2140214), (40, 1070107), (73, 586360), (107, 400040), (137, 312440), (146, 293180), (214, 200020), (274, 156220), (292, 146590), (365, 117272), (428, 100010), (535, 80008), (548, 78110), (584, 73295), (685, 62488), (730, 58636), (856, 50005), (1070, 40004), (1096, 39055), (1370, 31244), (1460, 29318), (2140, 20002), (2740, 15622), (2920, 14659), (4280, 10001), (5480, 7811)]