199944615

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{2557}}^1$

素因数の和:2979

約数の個数: 32

約数和(自身を含む): 345514176

約数和(自身を除く): 145569561

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 401, 1203, 2005, 2557, 5213, 6015, 7671, 12785, 15639, 26065, 33241, 38355, 78195, 99723, 166205, 498615, 1025357, 3076071, 5126785, 13329641, 15380355, 39988923, 66648205, 199944615]

約数ペア:

[(1, 199944615), (3, 66648205), (5, 39988923), (13, 15380355), (15, 13329641), (39, 5126785), (65, 3076071), (195, 1025357), (401, 498615), (1203, 166205), (2005, 99723), (2557, 78195), (5213, 38355), (6015, 33241), (7671, 26065), (12785, 15639)]