80405940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:493

約数の個数: 96

約数和(自身を含む): 234823680

約数和(自身を除く): 154417740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 139, 155, 186, 278, 310, 311, 372, 417, 465, 556, 620, 622, 695, 834, 930, 933, 1244, 1390, 1555, 1668, 1860, 1866, 2085, 2780, 3110, 3732, 4170, 4309, 4665, 6220, 8340, 8618, 9330, 9641, 12927, 17236, 18660, 19282, 21545, 25854, 28923, 38564, 43090, 43229, 48205, 51708, 57846, 64635, 86180, 86458, 96410, 115692, 129270, 129687, 144615, 172916, 192820, 216145, 258540, 259374, 289230, 432290, 518748, 578460, 648435, 864580, 1296870, 1340099, 2593740, 2680198, 4020297, 5360396, 6700495, 8040594, 13400990, 16081188, 20101485, 26801980, 40202970, 80405940]

約数ペア:

[(1, 80405940), (2, 40202970), (3, 26801980), (4, 20101485), (5, 16081188), (6, 13400990), (10, 8040594), (12, 6700495), (15, 5360396), (20, 4020297), (30, 2680198), (31, 2593740), (60, 1340099), (62, 1296870), (93, 864580), (124, 648435), (139, 578460), (155, 518748), (186, 432290), (278, 289230), (310, 259374), (311, 258540), (372, 216145), (417, 192820), (465, 172916), (556, 144615), (620, 129687), (622, 129270), (695, 115692), (834, 96410), (930, 86458), (933, 86180), (1244, 64635), (1390, 57846), (1555, 51708), (1668, 48205), (1860, 43229), (1866, 43090), (2085, 38564), (2780, 28923), (3110, 25854), (3732, 21545), (4170, 19282), (4309, 18660), (4665, 17236), (6220, 12927), (8340, 9641), (8618, 9330)]