20120104375

素因数分解:

$5^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{21193}}^1$

素因数の和:21258

約数の個数: 60

約数和(自身を含む): 30191785536

約数和(自身を除く): 10071681161

約数列:

[1, 5, 7, 25, 31, 35, 49, 125, 155, 175, 217, 245, 625, 775, 875, 1085, 1225, 1519, 3875, 4375, 5425, 6125, 7595, 19375, 21193, 27125, 30625, 37975, 105965, 135625, 148351, 189875, 529825, 656983, 741755, 949375, 1038457, 2649125, 3284915, 3708775, 4598881, 5192285, 13245625, 16424575, 18543875, 22994405, 25961425, 32192167, 82122875, 92719375, 114972025, 129807125, 160960835, 410614375, 574860125, 649035625, 804804175, 2874300625, 4024020875, 20120104375]

約数ペア:

[(1, 20120104375), (5, 4024020875), (7, 2874300625), (25, 804804175), (31, 649035625), (35, 574860125), (49, 410614375), (125, 160960835), (155, 129807125), (175, 114972025), (217, 92719375), (245, 82122875), (625, 32192167), (775, 25961425), (875, 22994405), (1085, 18543875), (1225, 16424575), (1519, 13245625), (3875, 5192285), (4375, 4598881), (5425, 3708775), (6125, 3284915), (7595, 2649125), (19375, 1038457), (21193, 949375), (27125, 741755), (30625, 656983), (37975, 529825), (105965, 189875), (135625, 148351)]