205910005

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 302177520

約数和(自身を除く): 96267515

約数列:

[1, 5, 7, 29, 35, 49, 73, 145, 203, 245, 365, 397, 511, 1015, 1421, 1985, 2117, 2555, 2779, 3577, 7105, 10585, 11513, 13895, 14819, 17885, 19453, 28981, 57565, 74095, 80591, 97265, 103733, 144905, 202867, 402955, 518665, 564137, 840449, 1014335, 1420069, 2820685, 4202245, 5883143, 7100345, 29415715, 41182001, 205910005]

約数ペア:

[(1, 205910005), (5, 41182001), (7, 29415715), (29, 7100345), (35, 5883143), (49, 4202245), (73, 2820685), (145, 1420069), (203, 1014335), (245, 840449), (365, 564137), (397, 518665), (511, 402955), (1015, 202867), (1421, 144905), (1985, 103733), (2117, 97265), (2555, 80591), (2779, 74095), (3577, 57565), (7105, 28981), (10585, 19453), (11513, 17885), (13895, 14819)]