19471480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 50466240

約数和(自身を除く): 30994760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 353, 394, 706, 788, 985, 1379, 1412, 1576, 1765, 1970, 2471, 2758, 2824, 3530, 3940, 4942, 5516, 6895, 7060, 7880, 9884, 11032, 12355, 13790, 14120, 19768, 24710, 27580, 49420, 55160, 69541, 98840, 139082, 278164, 347705, 486787, 556328, 695410, 973574, 1390820, 1947148, 2433935, 2781640, 3894296, 4867870, 9735740, 19471480]

約数ペア:

[(1, 19471480), (2, 9735740), (4, 4867870), (5, 3894296), (7, 2781640), (8, 2433935), (10, 1947148), (14, 1390820), (20, 973574), (28, 695410), (35, 556328), (40, 486787), (56, 347705), (70, 278164), (140, 139082), (197, 98840), (280, 69541), (353, 55160), (394, 49420), (706, 27580), (788, 24710), (985, 19768), (1379, 14120), (1412, 13790), (1576, 12355), (1765, 11032), (1970, 9884), (2471, 7880), (2758, 7060), (2824, 6895), (3530, 5516), (3940, 4942)]