2121020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 5031936

約数和(自身を除く): 2910916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 311, 341, 620, 622, 682, 1244, 1364, 1555, 1705, 3110, 3410, 3421, 6220, 6820, 6842, 9641, 13684, 17105, 19282, 34210, 38564, 48205, 68420, 96410, 106051, 192820, 212102, 424204, 530255, 1060510, 2121020]

約数ペア:

[(1, 2121020), (2, 1060510), (4, 530255), (5, 424204), (10, 212102), (11, 192820), (20, 106051), (22, 96410), (31, 68420), (44, 48205), (55, 38564), (62, 34210), (110, 19282), (124, 17105), (155, 13684), (220, 9641), (310, 6842), (311, 6820), (341, 6220), (620, 3421), (622, 3410), (682, 3110), (1244, 1705), (1364, 1555)]