18392720

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3769}}^1$

素因数の和:3843

約数の個数: 40

約数和(自身を含む): 43475640

約数和(自身を除く): 25082920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3769, 4880, 7538, 15076, 18845, 30152, 37690, 60304, 75380, 150760, 229909, 301520, 459818, 919636, 1149545, 1839272, 2299090, 3678544, 4598180, 9196360, 18392720]

約数ペア:

[(1, 18392720), (2, 9196360), (4, 4598180), (5, 3678544), (8, 2299090), (10, 1839272), (16, 1149545), (20, 919636), (40, 459818), (61, 301520), (80, 229909), (122, 150760), (244, 75380), (305, 60304), (488, 37690), (610, 30152), (976, 18845), (1220, 15076), (2440, 7538), (3769, 4880)]