56780920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1361}}^1$

素因数の和:1528

約数の個数: 64

約数和(自身を含む): 147096000

約数和(自身を除く): 90315080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 745, 1043, 1192, 1361, 1490, 2086, 2722, 2980, 4172, 5215, 5444, 5960, 6805, 8344, 9527, 10430, 10888, 13610, 19054, 20860, 27220, 38108, 41720, 47635, 54440, 76216, 95270, 190540, 202789, 381080, 405578, 811156, 1013945, 1419523, 1622312, 2027890, 2839046, 4055780, 5678092, 7097615, 8111560, 11356184, 14195230, 28390460, 56780920]

約数ペア:

[(1, 56780920), (2, 28390460), (4, 14195230), (5, 11356184), (7, 8111560), (8, 7097615), (10, 5678092), (14, 4055780), (20, 2839046), (28, 2027890), (35, 1622312), (40, 1419523), (56, 1013945), (70, 811156), (140, 405578), (149, 381080), (280, 202789), (298, 190540), (596, 95270), (745, 76216), (1043, 54440), (1192, 47635), (1361, 41720), (1490, 38108), (2086, 27220), (2722, 20860), (2980, 19054), (4172, 13610), (5215, 10888), (5444, 10430), (5960, 9527), (6805, 8344)]