20564880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12241}}^1$

素因数の和:12264

約数の個数: 80

約数和(自身を含む): 72864384

約数和(自身を除く): 52299504

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12241, 24482, 36723, 48964, 61205, 73446, 85687, 97928, 122410, 146892, 171374, 183615, 195856, 244820, 257061, 293784, 342748, 367230, 428435, 489640, 514122, 587568, 685496, 734460, 856870, 979280, 1028244, 1285305, 1370992, 1468920, 1713740, 2056488, 2570610, 2937840, 3427480, 4112976, 5141220, 6854960, 10282440, 20564880]

約数ペア:

[(1, 20564880), (2, 10282440), (3, 6854960), (4, 5141220), (5, 4112976), (6, 3427480), (7, 2937840), (8, 2570610), (10, 2056488), (12, 1713740), (14, 1468920), (15, 1370992), (16, 1285305), (20, 1028244), (21, 979280), (24, 856870), (28, 734460), (30, 685496), (35, 587568), (40, 514122), (42, 489640), (48, 428435), (56, 367230), (60, 342748), (70, 293784), (80, 257061), (84, 244820), (105, 195856), (112, 183615), (120, 171374), (140, 146892), (168, 122410), (210, 97928), (240, 85687), (280, 73446), (336, 61205), (420, 48964), (560, 36723), (840, 24482), (1680, 12241)]