261882908

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{1453}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 540329664

約数和(自身を除く): 278446756

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 157, 164, 287, 314, 574, 628, 1099, 1148, 1453, 2198, 2906, 4396, 5812, 6437, 10171, 12874, 20342, 25748, 40684, 45059, 59573, 90118, 119146, 180236, 228121, 238292, 417011, 456242, 834022, 912484, 1596847, 1668044, 3193694, 6387388, 9352961, 18705922, 37411844, 65470727, 130941454, 261882908]

約数ペア:

[(1, 261882908), (2, 130941454), (4, 65470727), (7, 37411844), (14, 18705922), (28, 9352961), (41, 6387388), (82, 3193694), (157, 1668044), (164, 1596847), (287, 912484), (314, 834022), (574, 456242), (628, 417011), (1099, 238292), (1148, 228121), (1453, 180236), (2198, 119146), (2906, 90118), (4396, 59573), (5812, 45059), (6437, 40684), (10171, 25748), (12874, 20342)]