197909425

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{191}}^2$

素因数の和:430

約数の個数: 36

約数和(自身を含む): 291036928

約数和(自身を除く): 93127503

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 191, 217, 775, 955, 1085, 1337, 4775, 5425, 5921, 6685, 29605, 33425, 36481, 41447, 148025, 182405, 207235, 255367, 912025, 1036175, 1130911, 1276835, 5654555, 6384175, 7916377, 28272775, 39581885, 197909425]

約数ペア:

[(1, 197909425), (5, 39581885), (7, 28272775), (25, 7916377), (31, 6384175), (35, 5654555), (155, 1276835), (175, 1130911), (191, 1036175), (217, 912025), (775, 255367), (955, 207235), (1085, 182405), (1337, 148025), (4775, 41447), (5425, 36481), (5921, 33425), (6685, 29605)]