20161020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2777}}^1$

素因数の和:2811

約数の個数: 72

約数和(自身を含む): 62071632

約数和(自身を除く): 41910612

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 2777, 3630, 5554, 7260, 8331, 11108, 13885, 16662, 27770, 30547, 33324, 41655, 55540, 61094, 83310, 91641, 122188, 152735, 166620, 183282, 305470, 336017, 366564, 458205, 610940, 672034, 916410, 1008051, 1344068, 1680085, 1832820, 2016102, 3360170, 4032204, 5040255, 6720340, 10080510, 20161020]

約数ペア:

[(1, 20161020), (2, 10080510), (3, 6720340), (4, 5040255), (5, 4032204), (6, 3360170), (10, 2016102), (11, 1832820), (12, 1680085), (15, 1344068), (20, 1008051), (22, 916410), (30, 672034), (33, 610940), (44, 458205), (55, 366564), (60, 336017), (66, 305470), (110, 183282), (121, 166620), (132, 152735), (165, 122188), (220, 91641), (242, 83310), (330, 61094), (363, 55540), (484, 41655), (605, 33324), (660, 30547), (726, 27770), (1210, 16662), (1452, 13885), (1815, 11108), (2420, 8331), (2777, 7260), (3630, 5554)]