18791220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44741}}^1$

素因数の和:44760

約数の個数: 48

約数和(自身を含む): 60133248

約数和(自身を除く): 41342028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 44741, 89482, 134223, 178964, 223705, 268446, 313187, 447410, 536892, 626374, 671115, 894820, 939561, 1252748, 1342230, 1565935, 1879122, 2684460, 3131870, 3758244, 4697805, 6263740, 9395610, 18791220]

約数ペア:

[(1, 18791220), (2, 9395610), (3, 6263740), (4, 4697805), (5, 3758244), (6, 3131870), (7, 2684460), (10, 1879122), (12, 1565935), (14, 1342230), (15, 1252748), (20, 939561), (21, 894820), (28, 671115), (30, 626374), (35, 536892), (42, 447410), (60, 313187), (70, 268446), (84, 223705), (105, 178964), (140, 134223), (210, 89482), (420, 44741)]