27979520

素因数分解:

$2^8\times 5^1\times {\mathrm{21859}}^1$

素因数の和:21880

約数の個数: 36

約数和(自身を含む): 67022760

約数和(自身を除く): 39043240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 21859, 43718, 87436, 109295, 174872, 218590, 349744, 437180, 699488, 874360, 1398976, 1748720, 2797952, 3497440, 5595904, 6994880, 13989760, 27979520]

約数ペア:

[(1, 27979520), (2, 13989760), (4, 6994880), (5, 5595904), (8, 3497440), (10, 2797952), (16, 1748720), (20, 1398976), (32, 874360), (40, 699488), (64, 437180), (80, 349744), (128, 218590), (160, 174872), (256, 109295), (320, 87436), (640, 43718), (1280, 21859)]