31914260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{887}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 76978944

約数和(自身を除く): 45064684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 887, 1028, 1285, 1774, 1799, 2570, 3548, 3598, 4435, 5140, 6209, 7196, 8870, 8995, 12418, 17740, 17990, 24836, 31045, 35980, 62090, 124180, 227959, 455918, 911836, 1139795, 1595713, 2279590, 3191426, 4559180, 6382852, 7978565, 15957130, 31914260]

約数ペア:

[(1, 31914260), (2, 15957130), (4, 7978565), (5, 6382852), (7, 4559180), (10, 3191426), (14, 2279590), (20, 1595713), (28, 1139795), (35, 911836), (70, 455918), (140, 227959), (257, 124180), (514, 62090), (887, 35980), (1028, 31045), (1285, 24836), (1774, 17990), (1799, 17740), (2570, 12418), (3548, 8995), (3598, 8870), (4435, 7196), (5140, 6209)]