28443100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{227}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 71245440

約数和(自身を除く): 42802340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 179, 227, 350, 358, 454, 700, 716, 895, 908, 1135, 1253, 1589, 1790, 2270, 2506, 3178, 3580, 4475, 4540, 5012, 5675, 6265, 6356, 7945, 8950, 11350, 12530, 15890, 17900, 22700, 25060, 31325, 31780, 39725, 40633, 62650, 79450, 81266, 125300, 158900, 162532, 203165, 284431, 406330, 568862, 812660, 1015825, 1137724, 1422155, 2031650, 2844310, 4063300, 5688620, 7110775, 14221550, 28443100]

約数ペア:

[(1, 28443100), (2, 14221550), (4, 7110775), (5, 5688620), (7, 4063300), (10, 2844310), (14, 2031650), (20, 1422155), (25, 1137724), (28, 1015825), (35, 812660), (50, 568862), (70, 406330), (100, 284431), (140, 203165), (175, 162532), (179, 158900), (227, 125300), (350, 81266), (358, 79450), (454, 62650), (700, 40633), (716, 39725), (895, 31780), (908, 31325), (1135, 25060), (1253, 22700), (1589, 17900), (1790, 15890), (2270, 12530), (2506, 11350), (3178, 8950), (3580, 7945), (4475, 6356), (4540, 6265), (5012, 5675)]