77342380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 167650560

約数和(自身を除く): 90308180

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 139, 172, 215, 278, 430, 556, 647, 695, 860, 1294, 1390, 2588, 2780, 3235, 5977, 6470, 11954, 12940, 23908, 27821, 29885, 55642, 59770, 89933, 111284, 119540, 139105, 179866, 278210, 359732, 449665, 556420, 899330, 1798660, 3867119, 7734238, 15468476, 19335595, 38671190, 77342380]

約数ペア:

[(1, 77342380), (2, 38671190), (4, 19335595), (5, 15468476), (10, 7734238), (20, 3867119), (43, 1798660), (86, 899330), (139, 556420), (172, 449665), (215, 359732), (278, 278210), (430, 179866), (556, 139105), (647, 119540), (695, 111284), (860, 89933), (1294, 59770), (1390, 55642), (2588, 29885), (2780, 27821), (3235, 23908), (5977, 12940), (6470, 11954)]