2720925

素因数分解:

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

素因数の和:187

約数の個数: 48

約数和(自身を含む): 5208000

約数和(自身を除く): 2487075

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 87, 135, 139, 145, 225, 261, 417, 435, 675, 695, 725, 783, 1251, 1305, 2085, 2175, 3475, 3753, 3915, 4031, 6255, 6525, 10425, 12093, 18765, 19575, 20155, 31275, 36279, 60465, 93825, 100775, 108837, 181395, 302325, 544185, 906975, 2720925]

約数ペア:

[(1, 2720925), (3, 906975), (5, 544185), (9, 302325), (15, 181395), (25, 108837), (27, 100775), (29, 93825), (45, 60465), (75, 36279), (87, 31275), (135, 20155), (139, 19575), (145, 18765), (225, 12093), (261, 10425), (417, 6525), (435, 6255), (675, 4031), (695, 3915), (725, 3753), (783, 3475), (1251, 2175), (1305, 2085)]