261749368

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{10247}}^1$

素因数の和:10387

約数の個数: 32

約数和(自身を含む): 511580160

約数和(自身を除く): 249830792

約数列:

[1, 2, 4, 8, 31, 62, 103, 124, 206, 248, 412, 824, 3193, 6386, 10247, 12772, 20494, 25544, 40988, 81976, 317657, 635314, 1055441, 1270628, 2110882, 2541256, 4221764, 8443528, 32718671, 65437342, 130874684, 261749368]

約数ペア:

[(1, 261749368), (2, 130874684), (4, 65437342), (8, 32718671), (31, 8443528), (62, 4221764), (103, 2541256), (124, 2110882), (206, 1270628), (248, 1055441), (412, 635314), (824, 317657), (3193, 81976), (6386, 40988), (10247, 25544), (12772, 20494)]