289120139

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 392999040

約数和(自身を除く): 103878901

約数列:

[1, 7, 11, 17, 49, 77, 119, 139, 187, 227, 539, 833, 973, 1309, 1529, 1589, 2363, 2497, 3859, 6811, 9163, 10703, 11123, 16541, 17479, 25993, 27013, 31553, 42449, 74921, 115787, 122353, 181951, 189091, 220871, 297143, 347083, 536401, 1273657, 1546097, 2080001, 2429581, 3754807, 5900411, 17007067, 26283649, 41302877, 289120139]

約数ペア:

[(1, 289120139), (7, 41302877), (11, 26283649), (17, 17007067), (49, 5900411), (77, 3754807), (119, 2429581), (139, 2080001), (187, 1546097), (227, 1273657), (539, 536401), (833, 347083), (973, 297143), (1309, 220871), (1529, 189091), (1589, 181951), (2363, 122353), (2497, 115787), (3859, 74921), (6811, 42449), (9163, 31553), (10703, 27013), (11123, 25993), (16541, 17479)]