20805770825

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:807

約数の個数: 96

約数和(自身を含む): 31198003200

約数和(自身を除く): 10392232375

約数列:

[1, 5, 7, 25, 35, 41, 47, 103, 175, 205, 235, 287, 329, 515, 599, 721, 1025, 1175, 1435, 1645, 1927, 2575, 2995, 3605, 4193, 4223, 4841, 7175, 8225, 9635, 13489, 14975, 18025, 20965, 21115, 24205, 24559, 28153, 29561, 33887, 48175, 61697, 67445, 104825, 105575, 121025, 122795, 140765, 147805, 169435, 171913, 197071, 198481, 308485, 337225, 431879, 613975, 703825, 739025, 847175, 859565, 985355, 992405, 1154273, 1389367, 1542425, 2159395, 2529577, 2899759, 4297825, 4926775, 4962025, 5771365, 6946835, 8079911, 10796975, 12647885, 14498795, 17707039, 20298313, 28856825, 34734175, 40399555, 63239425, 72493975, 88535195, 101491565, 118890119, 201997775, 442675975, 507457825, 594450595, 832230833, 2972252975, 4161154165, 20805770825]

約数ペア:

[(1, 20805770825), (5, 4161154165), (7, 2972252975), (25, 832230833), (35, 594450595), (41, 507457825), (47, 442675975), (103, 201997775), (175, 118890119), (205, 101491565), (235, 88535195), (287, 72493975), (329, 63239425), (515, 40399555), (599, 34734175), (721, 28856825), (1025, 20298313), (1175, 17707039), (1435, 14498795), (1645, 12647885), (1927, 10796975), (2575, 8079911), (2995, 6946835), (3605, 5771365), (4193, 4962025), (4223, 4926775), (4841, 4297825), (7175, 2899759), (8225, 2529577), (9635, 2159395), (13489, 1542425), (14975, 1389367), (18025, 1154273), (20965, 992405), (21115, 985355), (24205, 859565), (24559, 847175), (28153, 739025), (29561, 703825), (33887, 613975), (48175, 431879), (61697, 337225), (67445, 308485), (104825, 198481), (105575, 197071), (121025, 171913), (122795, 169435), (140765, 147805)]