289772021

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 411402240

約数和(自身を除く): 121630219

約数列:

[1, 7, 11, 17, 19, 61, 77, 119, 133, 187, 191, 209, 323, 427, 671, 1037, 1159, 1309, 1337, 1463, 2101, 2261, 3247, 3553, 3629, 4697, 7259, 8113, 11407, 11651, 12749, 14707, 19703, 22729, 24871, 25403, 35717, 39919, 61693, 79849, 81557, 89243, 128161, 137921, 198067, 216733, 221369, 250019, 279433, 431851, 678623, 897127, 1386469, 1517131, 1549583, 2178737, 2435059, 3763273, 4750361, 15251159, 17045413, 26342911, 41396003, 289772021]

約数ペア:

[(1, 289772021), (7, 41396003), (11, 26342911), (17, 17045413), (19, 15251159), (61, 4750361), (77, 3763273), (119, 2435059), (133, 2178737), (187, 1549583), (191, 1517131), (209, 1386469), (323, 897127), (427, 678623), (671, 431851), (1037, 279433), (1159, 250019), (1309, 221369), (1337, 216733), (1463, 198067), (2101, 137921), (2261, 128161), (3247, 89243), (3553, 81557), (3629, 79849), (4697, 61693), (7259, 39919), (8113, 35717), (11407, 25403), (11651, 24871), (12749, 22729), (14707, 19703)]