28519225

素因数分解:

$5^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:806

約数の個数: 36

約数和(自身を含む): 42521088

約数和(自身を除く): 14001863

約数列:

[1, 5, 7, 25, 31, 35, 49, 155, 175, 217, 245, 751, 775, 1085, 1225, 1519, 3755, 5257, 5425, 7595, 18775, 23281, 26285, 36799, 37975, 116405, 131425, 162967, 183995, 582025, 814835, 919975, 1140769, 4074175, 5703845, 28519225]

約数ペア:

[(1, 28519225), (5, 5703845), (7, 4074175), (25, 1140769), (31, 919975), (35, 814835), (49, 582025), (155, 183995), (175, 162967), (217, 131425), (245, 116405), (751, 37975), (775, 36799), (1085, 26285), (1225, 23281), (1519, 18775), (3755, 7595), (5257, 5425)]