20154908165

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{727}}^1\times {\mathrm{34439}}^1$

素因数の和:35201

約数の個数: 32

約数和(自身を含む): 28883312640

約数和(自身を除く): 8728404475

約数列:

[1, 5, 7, 23, 35, 115, 161, 727, 805, 3635, 5089, 16721, 25445, 34439, 83605, 117047, 172195, 241073, 585235, 792097, 1205365, 3960485, 5544679, 25037153, 27723395, 125185765, 175260071, 575854519, 876300355, 2879272595, 4030981633, 20154908165]

約数ペア:

[(1, 20154908165), (5, 4030981633), (7, 2879272595), (23, 876300355), (35, 575854519), (115, 175260071), (161, 125185765), (727, 27723395), (805, 25037153), (3635, 5544679), (5089, 3960485), (16721, 1205365), (25445, 792097), (34439, 585235), (83605, 241073), (117047, 172195)]