2687312980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{154621}}^1$

素因数の和:154720

約数の個数: 48

約数和(自身を含む): 6234359040

約数和(自身を除く): 3547046060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 17380, 154621, 309242, 618484, 773105, 1546210, 1700831, 3092420, 3401662, 6803324, 8504155, 12215059, 17008310, 24430118, 34016620, 48860236, 61075295, 122150590, 134365649, 244301180, 268731298, 537462596, 671828245, 1343656490, 2687312980]

約数ペア:

[(1, 2687312980), (2, 1343656490), (4, 671828245), (5, 537462596), (10, 268731298), (11, 244301180), (20, 134365649), (22, 122150590), (44, 61075295), (55, 48860236), (79, 34016620), (110, 24430118), (158, 17008310), (220, 12215059), (316, 8504155), (395, 6803324), (790, 3401662), (869, 3092420), (1580, 1700831), (1738, 1546210), (3476, 773105), (4345, 618484), (8690, 309242), (17380, 154621)]