20369860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1753}}^1$

素因数の和:1852

約数の個数: 48

約数和(自身を含む): 49504896

約数和(自身を除く): 29135036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 332, 415, 581, 830, 1162, 1660, 1753, 2324, 2905, 3506, 5810, 7012, 8765, 11620, 12271, 17530, 24542, 35060, 49084, 61355, 122710, 145499, 245420, 290998, 581996, 727495, 1018493, 1454990, 2036986, 2909980, 4073972, 5092465, 10184930, 20369860]

約数ペア:

[(1, 20369860), (2, 10184930), (4, 5092465), (5, 4073972), (7, 2909980), (10, 2036986), (14, 1454990), (20, 1018493), (28, 727495), (35, 581996), (70, 290998), (83, 245420), (140, 145499), (166, 122710), (332, 61355), (415, 49084), (581, 35060), (830, 24542), (1162, 17530), (1660, 12271), (1753, 11620), (2324, 8765), (2905, 7012), (3506, 5810)]