220173440

素因数分解:

$2^7\times 5^1\times {\mathrm{344021}}^1$

素因数の和:344040

約数の個数: 32

約数和(自身を含む): 526353660

約数和(自身を除く): 306180220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 344021, 688042, 1376084, 1720105, 2752168, 3440210, 5504336, 6880420, 11008672, 13760840, 22017344, 27521680, 44034688, 55043360, 110086720, 220173440]

約数ペア:

[(1, 220173440), (2, 110086720), (4, 55043360), (5, 44034688), (8, 27521680), (10, 22017344), (16, 13760840), (20, 11008672), (32, 6880420), (40, 5504336), (64, 3440210), (80, 2752168), (128, 1720105), (160, 1376084), (320, 688042), (640, 344021)]