2081569480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{5273}}^1$

素因数の和:5494

約数の個数: 64

約数和(自身を含む): 4784572800

約数和(自身を除く): 2703003320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 139, 142, 278, 284, 355, 556, 568, 695, 710, 1112, 1390, 1420, 2780, 2840, 5273, 5560, 9869, 10546, 19738, 21092, 26365, 39476, 42184, 49345, 52730, 78952, 98690, 105460, 197380, 210920, 374383, 394760, 732947, 748766, 1465894, 1497532, 1871915, 2931788, 2995064, 3664735, 3743830, 5863576, 7329470, 7487660, 14658940, 14975320, 29317880, 52039237, 104078474, 208156948, 260196185, 416313896, 520392370, 1040784740, 2081569480]

約数ペア:

[(1, 2081569480), (2, 1040784740), (4, 520392370), (5, 416313896), (8, 260196185), (10, 208156948), (20, 104078474), (40, 52039237), (71, 29317880), (139, 14975320), (142, 14658940), (278, 7487660), (284, 7329470), (355, 5863576), (556, 3743830), (568, 3664735), (695, 2995064), (710, 2931788), (1112, 1871915), (1390, 1497532), (1420, 1465894), (2780, 748766), (2840, 732947), (5273, 394760), (5560, 374383), (9869, 210920), (10546, 197380), (19738, 105460), (21092, 98690), (26365, 78952), (39476, 52730), (42184, 49345)]