20008660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1201}}^1$

素因数の和:1241

約数の個数: 72

約数和(自身を含む): 51796584

約数和(自身を除く): 31787924

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1201, 1666, 2380, 2402, 3332, 4165, 4804, 6005, 8330, 8407, 12010, 16660, 16814, 20417, 24020, 33628, 40834, 42035, 58849, 81668, 84070, 102085, 117698, 142919, 168140, 204170, 235396, 285838, 294245, 408340, 571676, 588490, 714595, 1000433, 1176980, 1429190, 2000866, 2858380, 4001732, 5002165, 10004330, 20008660]

約数ペア:

[(1, 20008660), (2, 10004330), (4, 5002165), (5, 4001732), (7, 2858380), (10, 2000866), (14, 1429190), (17, 1176980), (20, 1000433), (28, 714595), (34, 588490), (35, 571676), (49, 408340), (68, 294245), (70, 285838), (85, 235396), (98, 204170), (119, 168140), (140, 142919), (170, 117698), (196, 102085), (238, 84070), (245, 81668), (340, 58849), (476, 42035), (490, 40834), (595, 33628), (833, 24020), (980, 20417), (1190, 16814), (1201, 16660), (1666, 12010), (2380, 8407), (2402, 8330), (3332, 6005), (4165, 4804)]