166157440

素因数分解:

$2^7\times 5^1\times {\mathrm{259621}}^1$

素因数の和:259640

約数の個数: 32

約数和(自身を含む): 397221660

約数和(自身を除く): 231064220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 259621, 519242, 1038484, 1298105, 2076968, 2596210, 4153936, 5192420, 8307872, 10384840, 16615744, 20769680, 33231488, 41539360, 83078720, 166157440]

約数ペア:

[(1, 166157440), (2, 83078720), (4, 41539360), (5, 33231488), (8, 20769680), (10, 16615744), (16, 10384840), (20, 8307872), (32, 5192420), (40, 4153936), (64, 2596210), (80, 2076968), (128, 1298105), (160, 1038484), (320, 519242), (640, 259621)]