20385780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7229}}^1$

素因数の和:7288

約数の個数: 48

約数和(自身を含む): 58302720

約数和(自身を除く): 37916940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7229, 14458, 21687, 28916, 36145, 43374, 72290, 86748, 108435, 144580, 216870, 339763, 433740, 679526, 1019289, 1359052, 1698815, 2038578, 3397630, 4077156, 5096445, 6795260, 10192890, 20385780]

約数ペア:

[(1, 20385780), (2, 10192890), (3, 6795260), (4, 5096445), (5, 4077156), (6, 3397630), (10, 2038578), (12, 1698815), (15, 1359052), (20, 1019289), (30, 679526), (47, 433740), (60, 339763), (94, 216870), (141, 144580), (188, 108435), (235, 86748), (282, 72290), (470, 43374), (564, 36145), (705, 28916), (940, 21687), (1410, 14458), (2820, 7229)]