206165375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{439}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 295014720

約数和(自身を除く): 88849345

約数列:

[1, 5, 13, 17, 25, 65, 85, 125, 221, 289, 325, 425, 439, 1105, 1445, 1625, 2125, 2195, 3757, 5525, 5707, 7225, 7463, 10975, 18785, 27625, 28535, 36125, 37315, 54875, 93925, 97019, 126871, 142675, 186575, 469625, 485095, 634355, 713375, 932875, 1649323, 2425475, 3171775, 8246615, 12127375, 15858875, 41233075, 206165375]

約数ペア:

[(1, 206165375), (5, 41233075), (13, 15858875), (17, 12127375), (25, 8246615), (65, 3171775), (85, 2425475), (125, 1649323), (221, 932875), (289, 713375), (325, 634355), (425, 485095), (439, 469625), (1105, 186575), (1445, 142675), (1625, 126871), (2125, 97019), (2195, 93925), (3757, 54875), (5525, 37315), (5707, 36125), (7225, 28535), (7463, 27625), (10975, 18785)]