20025520

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4723}}^1$

素因数の和:4789

約数の個数: 40

約数和(自身を含む): 47447856

約数和(自身を除く): 27422336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4723, 9446, 18892, 23615, 37784, 47230, 75568, 94460, 188920, 250319, 377840, 500638, 1001276, 1251595, 2002552, 2503190, 4005104, 5006380, 10012760, 20025520]

約数ペア:

[(1, 20025520), (2, 10012760), (4, 5006380), (5, 4005104), (8, 2503190), (10, 2002552), (16, 1251595), (20, 1001276), (40, 500638), (53, 377840), (80, 250319), (106, 188920), (212, 94460), (265, 75568), (424, 47230), (530, 37784), (848, 23615), (1060, 18892), (2120, 9446), (4240, 4723)]