38910640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11863}}^1$

素因数の和:11917

約数の個数: 40

約数和(自身を含む): 92681568

約数和(自身を除く): 53770928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 11863, 23726, 47452, 59315, 94904, 118630, 189808, 237260, 474520, 486383, 949040, 972766, 1945532, 2431915, 3891064, 4863830, 7782128, 9727660, 19455320, 38910640]

約数ペア:

[(1, 38910640), (2, 19455320), (4, 9727660), (5, 7782128), (8, 4863830), (10, 3891064), (16, 2431915), (20, 1945532), (40, 972766), (41, 949040), (80, 486383), (82, 474520), (164, 237260), (205, 189808), (328, 118630), (410, 94904), (656, 59315), (820, 47452), (1640, 23726), (3280, 11863)]