8440520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19183}}^1$

素因数の和:19205

約数の個数: 32

約数和(自身を含む): 20718720

約数和(自身を除く): 12278200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 19183, 38366, 76732, 95915, 153464, 191830, 211013, 383660, 422026, 767320, 844052, 1055065, 1688104, 2110130, 4220260, 8440520]

約数ペア:

[(1, 8440520), (2, 4220260), (4, 2110130), (5, 1688104), (8, 1055065), (10, 844052), (11, 767320), (20, 422026), (22, 383660), (40, 211013), (44, 191830), (55, 153464), (88, 95915), (110, 76732), (220, 38366), (440, 19183)]