20987315412

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{66751}}^1$

素因数の和:66981

約数の個数: 96

約数和(自身を含む): 59211694080

約数和(自身を除く): 38224378668

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 197, 228, 266, 394, 399, 532, 591, 788, 798, 1182, 1379, 1596, 2364, 2758, 3743, 4137, 5516, 7486, 8274, 11229, 14972, 16548, 22458, 26201, 44916, 52402, 66751, 78603, 104804, 133502, 157206, 200253, 267004, 314412, 400506, 467257, 801012, 934514, 1268269, 1401771, 1869028, 2536538, 2803542, 3804807, 5073076, 5607084, 7609614, 8877883, 13149947, 15219228, 17755766, 26299894, 26633649, 35511532, 39449841, 52599788, 53267298, 78899682, 92049629, 106534596, 157799364, 184099258, 249848993, 276148887, 368198516, 499697986, 552297774, 749546979, 999395972, 1104595548, 1499093958, 1748942951, 2998187916, 3497885902, 5246828853, 6995771804, 10493657706, 20987315412]

約数ペア:

[(1, 20987315412), (2, 10493657706), (3, 6995771804), (4, 5246828853), (6, 3497885902), (7, 2998187916), (12, 1748942951), (14, 1499093958), (19, 1104595548), (21, 999395972), (28, 749546979), (38, 552297774), (42, 499697986), (57, 368198516), (76, 276148887), (84, 249848993), (114, 184099258), (133, 157799364), (197, 106534596), (228, 92049629), (266, 78899682), (394, 53267298), (399, 52599788), (532, 39449841), (591, 35511532), (788, 26633649), (798, 26299894), (1182, 17755766), (1379, 15219228), (1596, 13149947), (2364, 8877883), (2758, 7609614), (3743, 5607084), (4137, 5073076), (5516, 3804807), (7486, 2803542), (8274, 2536538), (11229, 1869028), (14972, 1401771), (16548, 1268269), (22458, 934514), (26201, 801012), (44916, 467257), (52402, 400506), (66751, 314412), (78603, 267004), (104804, 200253), (133502, 157206)]