647260725

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{479}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 1099929600

約数和(自身を除く): 452668875

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 419, 479, 645, 1075, 1257, 1437, 2095, 2395, 3225, 6285, 7185, 10475, 11975, 18017, 20597, 31425, 35925, 54051, 61791, 90085, 102985, 200701, 270255, 308955, 450425, 514925, 602103, 1003505, 1351275, 1544775, 3010515, 5017525, 8630143, 15052575, 25890429, 43150715, 129452145, 215753575, 647260725]

約数ペア:

[(1, 647260725), (3, 215753575), (5, 129452145), (15, 43150715), (25, 25890429), (43, 15052575), (75, 8630143), (129, 5017525), (215, 3010515), (419, 1544775), (479, 1351275), (645, 1003505), (1075, 602103), (1257, 514925), (1437, 450425), (2095, 308955), (2395, 270255), (3225, 200701), (6285, 102985), (7185, 90085), (10475, 61791), (11975, 54051), (18017, 35925), (20597, 31425)]