19772055

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 36036000

約数和(自身を除く): 16263945

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 109, 139, 145, 261, 327, 417, 435, 545, 695, 981, 1251, 1305, 1635, 2085, 3161, 4031, 4905, 6255, 9483, 12093, 15151, 15805, 20155, 28449, 36279, 45453, 47415, 60465, 75755, 136359, 142245, 181395, 227265, 439379, 681795, 1318137, 2196895, 3954411, 6590685, 19772055]

約数ペア:

[(1, 19772055), (3, 6590685), (5, 3954411), (9, 2196895), (15, 1318137), (29, 681795), (45, 439379), (87, 227265), (109, 181395), (139, 142245), (145, 136359), (261, 75755), (327, 60465), (417, 47415), (435, 45453), (545, 36279), (695, 28449), (981, 20155), (1251, 15805), (1305, 15151), (1635, 12093), (2085, 9483), (3161, 6255), (4031, 4905)]