278804590

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{11971}}^1$

素因数の和:12132

約数の個数: 32

約数和(自身を含む): 535292064

約数和(自身を除く): 256487474

約数列:

[1, 2, 5, 10, 17, 34, 85, 137, 170, 274, 685, 1370, 2329, 4658, 11645, 11971, 23290, 23942, 59855, 119710, 203507, 407014, 1017535, 1640027, 2035070, 3280054, 8200135, 16400270, 27880459, 55760918, 139402295, 278804590]

約数ペア:

[(1, 278804590), (2, 139402295), (5, 55760918), (10, 27880459), (17, 16400270), (34, 8200135), (85, 3280054), (137, 2035070), (170, 1640027), (274, 1017535), (685, 407014), (1370, 203507), (2329, 119710), (4658, 59855), (11645, 23942), (11971, 23290)]