2992180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 6512940

約数和(自身を除く): 3520760

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 89, 164, 178, 205, 356, 410, 445, 820, 890, 1681, 1780, 3362, 3649, 6724, 7298, 8405, 14596, 16810, 18245, 33620, 36490, 72980, 149609, 299218, 598436, 748045, 1496090, 2992180]

約数ペア:

[(1, 2992180), (2, 1496090), (4, 748045), (5, 598436), (10, 299218), (20, 149609), (41, 72980), (82, 36490), (89, 33620), (164, 18245), (178, 16810), (205, 14596), (356, 8405), (410, 7298), (445, 6724), (820, 3649), (890, 3362), (1681, 1780)]