19612780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1511}}^1$

素因数の和:1590

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 26110100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 1511, 2596, 3022, 3245, 6044, 6490, 7555, 12980, 15110, 16621, 30220, 33242, 66484, 83105, 89149, 166210, 178298, 332420, 356596, 445745, 891490, 980639, 1782980, 1961278, 3922556, 4903195, 9806390, 19612780]

約数ペア:

[(1, 19612780), (2, 9806390), (4, 4903195), (5, 3922556), (10, 1961278), (11, 1782980), (20, 980639), (22, 891490), (44, 445745), (55, 356596), (59, 332420), (110, 178298), (118, 166210), (220, 89149), (236, 83105), (295, 66484), (590, 33242), (649, 30220), (1180, 16621), (1298, 15110), (1511, 12980), (2596, 7555), (3022, 6490), (3245, 6044)]