209230315

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{2441}}^1$

素因数の和:2563

約数の個数: 32

約数和(自身を含む): 300072960

約数和(自身を除く): 90842645

約数列:

[1, 5, 7, 31, 35, 79, 155, 217, 395, 553, 1085, 2441, 2449, 2765, 12205, 12245, 17087, 17143, 75671, 85435, 85715, 192839, 378355, 529697, 964195, 1349873, 2648485, 5978009, 6749365, 29890045, 41846063, 209230315]

約数ペア:

[(1, 209230315), (5, 41846063), (7, 29890045), (31, 6749365), (35, 5978009), (79, 2648485), (155, 1349873), (217, 964195), (395, 529697), (553, 378355), (1085, 192839), (2441, 85715), (2449, 85435), (2765, 75671), (12205, 17143), (12245, 17087)]