80158540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52051}}^1$

素因数の和:52078

約数の個数: 48

約数和(自身を含む): 209873664

約数和(自身を除く): 129715124

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 52051, 104102, 208204, 260255, 364357, 520510, 572561, 728714, 1041020, 1145122, 1457428, 1821785, 2290244, 2862805, 3643570, 4007927, 5725610, 7287140, 8015854, 11451220, 16031708, 20039635, 40079270, 80158540]

約数ペア:

[(1, 80158540), (2, 40079270), (4, 20039635), (5, 16031708), (7, 11451220), (10, 8015854), (11, 7287140), (14, 5725610), (20, 4007927), (22, 3643570), (28, 2862805), (35, 2290244), (44, 1821785), (55, 1457428), (70, 1145122), (77, 1041020), (110, 728714), (140, 572561), (154, 520510), (220, 364357), (308, 260255), (385, 208204), (770, 104102), (1540, 52051)]