636990580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{7517}}^1$

素因数の和:7768

約数の個数: 48

約数和(自身を含む): 1414586880

約数和(自身を除く): 777596300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 223, 380, 446, 892, 1115, 2230, 4237, 4460, 7517, 8474, 15034, 16948, 21185, 30068, 37585, 42370, 75170, 84740, 142823, 150340, 285646, 571292, 714115, 1428230, 1676291, 2856460, 3352582, 6705164, 8381455, 16762910, 31849529, 33525820, 63699058, 127398116, 159247645, 318495290, 636990580]

約数ペア:

[(1, 636990580), (2, 318495290), (4, 159247645), (5, 127398116), (10, 63699058), (19, 33525820), (20, 31849529), (38, 16762910), (76, 8381455), (95, 6705164), (190, 3352582), (223, 2856460), (380, 1676291), (446, 1428230), (892, 714115), (1115, 571292), (2230, 285646), (4237, 150340), (4460, 142823), (7517, 84740), (8474, 75170), (15034, 42370), (16948, 37585), (21185, 30068)]