310640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1$

素因数の和:377

約数の個数: 40

約数和(自身を含む): 790128

約数和(自身を除く): 479488

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 353, 440, 706, 880, 1412, 1765, 2824, 3530, 3883, 5648, 7060, 7766, 14120, 15532, 19415, 28240, 31064, 38830, 62128, 77660, 155320, 310640]

約数ペア:

[(1, 310640), (2, 155320), (4, 77660), (5, 62128), (8, 38830), (10, 31064), (11, 28240), (16, 19415), (20, 15532), (22, 14120), (40, 7766), (44, 7060), (55, 5648), (80, 3883), (88, 3530), (110, 2824), (176, 1765), (220, 1412), (353, 880), (440, 706)]