19538720

素因数分解:

$2^5\times 5^1\times {\mathrm{122117}}^1$

素因数の和:122132

約数の個数: 24

約数和(自身を含む): 46160604

約数和(自身を除く): 26621884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 122117, 244234, 488468, 610585, 976936, 1221170, 1953872, 2442340, 3907744, 4884680, 9769360, 19538720]

約数ペア:

[(1, 19538720), (2, 9769360), (4, 4884680), (5, 3907744), (8, 2442340), (10, 1953872), (16, 1221170), (20, 976936), (32, 610585), (40, 488468), (80, 244234), (160, 122117)]