19080490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1213}}^1$

素因数の和:1255

約数の個数: 48

約数和(自身を含む): 40688424

約数和(自身を除く): 21607934

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1213, 1430, 1573, 2426, 3146, 6065, 7865, 12130, 13343, 15730, 15769, 26686, 31538, 66715, 78845, 133430, 146773, 157690, 173459, 293546, 346918, 733865, 867295, 1467730, 1734590, 1908049, 3816098, 9540245, 19080490]

約数ペア:

[(1, 19080490), (2, 9540245), (5, 3816098), (10, 1908049), (11, 1734590), (13, 1467730), (22, 867295), (26, 733865), (55, 346918), (65, 293546), (110, 173459), (121, 157690), (130, 146773), (143, 133430), (242, 78845), (286, 66715), (605, 31538), (715, 26686), (1210, 15769), (1213, 15730), (1430, 13343), (1573, 12130), (2426, 7865), (3146, 6065)]