15781365

素因数分解:

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

素因数の和:211

約数の個数: 48

約数和(自身を含む): 29265600

約数和(自身を除く): 13484235

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 139, 145, 261, 417, 435, 695, 783, 841, 1251, 1305, 2085, 2523, 3753, 3915, 4031, 4205, 6255, 7569, 12093, 12615, 18765, 20155, 22707, 36279, 37845, 60465, 108837, 113535, 116899, 181395, 350697, 544185, 584495, 1052091, 1753485, 3156273, 5260455, 15781365]

約数ペア:

[(1, 15781365), (3, 5260455), (5, 3156273), (9, 1753485), (15, 1052091), (27, 584495), (29, 544185), (45, 350697), (87, 181395), (135, 116899), (139, 113535), (145, 108837), (261, 60465), (417, 37845), (435, 36279), (695, 22707), (783, 20155), (841, 18765), (1251, 12615), (1305, 12093), (2085, 7569), (2523, 6255), (3753, 4205), (3915, 4031)]