20830460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 54190080

約数和(自身を除く): 33359620

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 41, 70, 76, 82, 95, 133, 140, 164, 190, 191, 205, 266, 287, 380, 382, 410, 532, 574, 665, 764, 779, 820, 955, 1148, 1330, 1337, 1435, 1558, 1910, 2660, 2674, 2870, 3116, 3629, 3820, 3895, 5348, 5453, 5740, 6685, 7258, 7790, 7831, 10906, 13370, 14516, 15580, 15662, 18145, 21812, 25403, 26740, 27265, 31324, 36290, 39155, 50806, 54530, 54817, 72580, 78310, 101612, 109060, 109634, 127015, 148789, 156620, 219268, 254030, 274085, 297578, 508060, 548170, 595156, 743945, 1041523, 1096340, 1487890, 2083046, 2975780, 4166092, 5207615, 10415230, 20830460]

約数ペア:

[(1, 20830460), (2, 10415230), (4, 5207615), (5, 4166092), (7, 2975780), (10, 2083046), (14, 1487890), (19, 1096340), (20, 1041523), (28, 743945), (35, 595156), (38, 548170), (41, 508060), (70, 297578), (76, 274085), (82, 254030), (95, 219268), (133, 156620), (140, 148789), (164, 127015), (190, 109634), (191, 109060), (205, 101612), (266, 78310), (287, 72580), (380, 54817), (382, 54530), (410, 50806), (532, 39155), (574, 36290), (665, 31324), (764, 27265), (779, 26740), (820, 25403), (955, 21812), (1148, 18145), (1330, 15662), (1337, 15580), (1435, 14516), (1558, 13370), (1910, 10906), (2660, 7831), (2674, 7790), (2870, 7258), (3116, 6685), (3629, 5740), (3820, 5453), (3895, 5348)]