215320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{769}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 554400

約数和(自身を除く): 339080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 769, 1538, 3076, 3845, 5383, 6152, 7690, 10766, 15380, 21532, 26915, 30760, 43064, 53830, 107660, 215320]

約数ペア:

[(1, 215320), (2, 107660), (4, 53830), (5, 43064), (7, 30760), (8, 26915), (10, 21532), (14, 15380), (20, 10766), (28, 7690), (35, 6152), (40, 5383), (56, 3845), (70, 3076), (140, 1538), (280, 769)]