16553925

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 31917600

約数和(自身を除く): 15363675

約数列:

[1, 3, 5, 9, 15, 25, 29, 43, 45, 59, 75, 87, 129, 145, 177, 215, 225, 261, 295, 387, 435, 531, 645, 725, 885, 1075, 1247, 1305, 1475, 1711, 1935, 2175, 2537, 2655, 3225, 3741, 4425, 5133, 6235, 6525, 7611, 8555, 9675, 11223, 12685, 13275, 15399, 18705, 22833, 25665, 31175, 38055, 42775, 56115, 63425, 73573, 76995, 93525, 114165, 128325, 190275, 220719, 280575, 367865, 384975, 570825, 662157, 1103595, 1839325, 3310785, 5517975, 16553925]

約数ペア:

[(1, 16553925), (3, 5517975), (5, 3310785), (9, 1839325), (15, 1103595), (25, 662157), (29, 570825), (43, 384975), (45, 367865), (59, 280575), (75, 220719), (87, 190275), (129, 128325), (145, 114165), (177, 93525), (215, 76995), (225, 73573), (261, 63425), (295, 56115), (387, 42775), (435, 38055), (531, 31175), (645, 25665), (725, 22833), (885, 18705), (1075, 15399), (1247, 13275), (1305, 12685), (1475, 11223), (1711, 9675), (1935, 8555), (2175, 7611), (2537, 6525), (2655, 6235), (3225, 5133), (3741, 4425)]