165453440

素因数分解:

$2^7\times 5^1\times {\mathrm{258521}}^1$

素因数の和:258540

約数の個数: 32

約数和(自身を含む): 395538660

約数和(自身を除く): 230085220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 258521, 517042, 1034084, 1292605, 2068168, 2585210, 4136336, 5170420, 8272672, 10340840, 16545344, 20681680, 33090688, 41363360, 82726720, 165453440]

約数ペア:

[(1, 165453440), (2, 82726720), (4, 41363360), (5, 33090688), (8, 20681680), (10, 16545344), (16, 10340840), (20, 8272672), (32, 5170420), (40, 4136336), (64, 2585210), (80, 2068168), (128, 1292605), (160, 1034084), (320, 517042), (640, 258521)]