19455320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11863}}^1$

素因数の和:11915

約数の個数: 32

約数和(自身を含む): 44845920

約数和(自身を除く): 25390600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11863, 23726, 47452, 59315, 94904, 118630, 237260, 474520, 486383, 972766, 1945532, 2431915, 3891064, 4863830, 9727660, 19455320]

約数ペア:

[(1, 19455320), (2, 9727660), (4, 4863830), (5, 3891064), (8, 2431915), (10, 1945532), (20, 972766), (40, 486383), (41, 474520), (82, 237260), (164, 118630), (205, 94904), (328, 59315), (410, 47452), (820, 23726), (1640, 11863)]