78132040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1061}}^1$

素因数の和:1342

約数の個数: 64

約数和(自身を含む): 201864960

約数和(自身を除く): 123732920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 526, 1052, 1061, 1315, 1841, 2104, 2122, 2630, 3682, 4244, 5260, 5305, 7364, 7427, 8488, 9205, 10520, 10610, 14728, 14854, 18410, 21220, 29708, 36820, 37135, 42440, 59416, 73640, 74270, 148540, 279043, 297080, 558086, 1116172, 1395215, 1953301, 2232344, 2790430, 3906602, 5580860, 7813204, 9766505, 11161720, 15626408, 19533010, 39066020, 78132040]

約数ペア:

[(1, 78132040), (2, 39066020), (4, 19533010), (5, 15626408), (7, 11161720), (8, 9766505), (10, 7813204), (14, 5580860), (20, 3906602), (28, 2790430), (35, 2232344), (40, 1953301), (56, 1395215), (70, 1116172), (140, 558086), (263, 297080), (280, 279043), (526, 148540), (1052, 74270), (1061, 73640), (1315, 59416), (1841, 42440), (2104, 37135), (2122, 36820), (2630, 29708), (3682, 21220), (4244, 18410), (5260, 14854), (5305, 14728), (7364, 10610), (7427, 10520), (8488, 9205)]