81716100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{647}}^1$

素因数の和:1085

約数の個数: 72

約数和(自身を含む): 237359808

約数和(自身を除く): 155643708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 421, 647, 842, 1263, 1294, 1684, 1941, 2105, 2526, 2588, 3235, 3882, 4210, 5052, 6315, 6470, 7764, 8420, 9705, 10525, 12630, 12940, 16175, 19410, 21050, 25260, 31575, 32350, 38820, 42100, 48525, 63150, 64700, 97050, 126300, 194100, 272387, 544774, 817161, 1089548, 1361935, 1634322, 2723870, 3268644, 4085805, 5447740, 6809675, 8171610, 13619350, 16343220, 20429025, 27238700, 40858050, 81716100]

約数ペア:

[(1, 81716100), (2, 40858050), (3, 27238700), (4, 20429025), (5, 16343220), (6, 13619350), (10, 8171610), (12, 6809675), (15, 5447740), (20, 4085805), (25, 3268644), (30, 2723870), (50, 1634322), (60, 1361935), (75, 1089548), (100, 817161), (150, 544774), (300, 272387), (421, 194100), (647, 126300), (842, 97050), (1263, 64700), (1294, 63150), (1684, 48525), (1941, 42100), (2105, 38820), (2526, 32350), (2588, 31575), (3235, 25260), (3882, 21050), (4210, 19410), (5052, 16175), (6315, 12940), (6470, 12630), (7764, 10525), (8420, 9705)]