20622260

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 45674496

約数和(自身を除く): 25052236

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 127, 230, 254, 353, 460, 508, 635, 706, 1270, 1412, 1765, 2540, 2921, 3530, 5842, 7060, 8119, 11684, 14605, 16238, 29210, 32476, 40595, 44831, 58420, 81190, 89662, 162380, 179324, 224155, 448310, 896620, 1031113, 2062226, 4124452, 5155565, 10311130, 20622260]

約数ペア:

[(1, 20622260), (2, 10311130), (4, 5155565), (5, 4124452), (10, 2062226), (20, 1031113), (23, 896620), (46, 448310), (92, 224155), (115, 179324), (127, 162380), (230, 89662), (254, 81190), (353, 58420), (460, 44831), (508, 40595), (635, 32476), (706, 29210), (1270, 16238), (1412, 14605), (1765, 11684), (2540, 8119), (2921, 7060), (3530, 5842)]