821275

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:68

約数の個数: 36

約数和(自身を含む): 1322832

約数和(自身を除く): 501557

約数列:

[1, 5, 7, 13, 19, 25, 35, 65, 91, 95, 133, 175, 247, 325, 361, 455, 475, 665, 1235, 1729, 1805, 2275, 2527, 3325, 4693, 6175, 8645, 9025, 12635, 23465, 32851, 43225, 63175, 117325, 164255, 821275]

約数ペア:

[(1, 821275), (5, 164255), (7, 117325), (13, 63175), (19, 43225), (25, 32851), (35, 23465), (65, 12635), (91, 9025), (95, 8645), (133, 6175), (175, 4693), (247, 3325), (325, 2527), (361, 2275), (455, 1805), (475, 1729), (665, 1235)]