164486720

素因数分解:

$2^6\times 5^1\times {\mathrm{514021}}^1$

素因数の和:514038

約数の個数: 28

約数和(自身を含む): 391684764

約数和(自身を除く): 227198044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 514021, 1028042, 2056084, 2570105, 4112168, 5140210, 8224336, 10280420, 16448672, 20560840, 32897344, 41121680, 82243360, 164486720]

約数ペア:

[(1, 164486720), (2, 82243360), (4, 41121680), (5, 32897344), (8, 20560840), (10, 16448672), (16, 10280420), (20, 8224336), (32, 5140210), (40, 4112168), (64, 2570105), (80, 2056084), (160, 1028042), (320, 514021)]