281188660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{2467}}^1$

素因数の和:2656

約数の個数: 48

約数和(自身を含む): 609497280

約数和(自身を除く): 328308620

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 139, 164, 205, 278, 410, 556, 695, 820, 1390, 2467, 2780, 4934, 5699, 9868, 11398, 12335, 22796, 24670, 28495, 49340, 56990, 101147, 113980, 202294, 342913, 404588, 505735, 685826, 1011470, 1371652, 1714565, 2022940, 3429130, 6858260, 14059433, 28118866, 56237732, 70297165, 140594330, 281188660]

約数ペア:

[(1, 281188660), (2, 140594330), (4, 70297165), (5, 56237732), (10, 28118866), (20, 14059433), (41, 6858260), (82, 3429130), (139, 2022940), (164, 1714565), (205, 1371652), (278, 1011470), (410, 685826), (556, 505735), (695, 404588), (820, 342913), (1390, 202294), (2467, 113980), (2780, 101147), (4934, 56990), (5699, 49340), (9868, 28495), (11398, 24670), (12335, 22796)]