25310020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 54754560

約数和(自身を除く): 29444540

約数列:

[1, 2, 4, 5, 10, 20, 79, 83, 158, 166, 193, 316, 332, 386, 395, 415, 772, 790, 830, 965, 1580, 1660, 1930, 3860, 6557, 13114, 15247, 16019, 26228, 30494, 32038, 32785, 60988, 64076, 65570, 76235, 80095, 131140, 152470, 160190, 304940, 320380, 1265501, 2531002, 5062004, 6327505, 12655010, 25310020]

約数ペア:

[(1, 25310020), (2, 12655010), (4, 6327505), (5, 5062004), (10, 2531002), (20, 1265501), (79, 320380), (83, 304940), (158, 160190), (166, 152470), (193, 131140), (316, 80095), (332, 76235), (386, 65570), (395, 64076), (415, 60988), (772, 32785), (790, 32038), (830, 30494), (965, 26228), (1580, 16019), (1660, 15247), (1930, 13114), (3860, 6557)]