15205715

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 21980160

約数和(自身を除く): 6774445

約数列:

[1, 5, 7, 29, 35, 71, 145, 203, 211, 355, 497, 1015, 1055, 1477, 2059, 2485, 6119, 7385, 10295, 14413, 14981, 30595, 42833, 72065, 74905, 104867, 214165, 434449, 524335, 2172245, 3041143, 15205715]

約数ペア:

[(1, 15205715), (5, 3041143), (7, 2172245), (29, 524335), (35, 434449), (71, 214165), (145, 104867), (203, 74905), (211, 72065), (355, 42833), (497, 30595), (1015, 14981), (1055, 14413), (1477, 10295), (2059, 7385), (2485, 6119)]