25293440

素因数分解:

$2^7\times 5^1\times {\mathrm{39521}}^1$

素因数の和:39540

約数の個数: 32

約数和(自身を含む): 60468660

約数和(自身を除く): 35175220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 39521, 79042, 158084, 197605, 316168, 395210, 632336, 790420, 1264672, 1580840, 2529344, 3161680, 5058688, 6323360, 12646720, 25293440]

約数ペア:

[(1, 25293440), (2, 12646720), (4, 6323360), (5, 5058688), (8, 3161680), (10, 2529344), (16, 1580840), (20, 1264672), (32, 790420), (40, 632336), (64, 395210), (80, 316168), (128, 197605), (160, 158084), (320, 79042), (640, 39521)]