90561280

素因数分解:

$2^8\times 5^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:669

約数の個数: 72

約数和(自身を含む): 218912400

約数和(自身を除く): 128351120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 320, 509, 556, 640, 695, 1018, 1112, 1280, 1390, 2036, 2224, 2545, 2780, 4072, 4448, 5090, 5560, 8144, 8896, 10180, 11120, 16288, 17792, 20360, 22240, 32576, 35584, 40720, 44480, 65152, 70751, 81440, 88960, 130304, 141502, 162880, 177920, 283004, 325760, 353755, 566008, 651520, 707510, 1132016, 1415020, 2264032, 2830040, 4528064, 5660080, 9056128, 11320160, 18112256, 22640320, 45280640, 90561280]

約数ペア:

[(1, 90561280), (2, 45280640), (4, 22640320), (5, 18112256), (8, 11320160), (10, 9056128), (16, 5660080), (20, 4528064), (32, 2830040), (40, 2264032), (64, 1415020), (80, 1132016), (128, 707510), (139, 651520), (160, 566008), (256, 353755), (278, 325760), (320, 283004), (509, 177920), (556, 162880), (640, 141502), (695, 130304), (1018, 88960), (1112, 81440), (1280, 70751), (1390, 65152), (2036, 44480), (2224, 40720), (2545, 35584), (2780, 32576), (4072, 22240), (4448, 20360), (5090, 17792), (5560, 16288), (8144, 11120), (8896, 10180)]