15721930760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20686751}}^1$

素因数の和:20686781

約数の個数: 32

約数和(自身を含む): 37236153600

約数和(自身を除く): 21514222840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 20686751, 41373502, 82747004, 103433755, 165494008, 206867510, 393048269, 413735020, 786096538, 827470040, 1572193076, 1965241345, 3144386152, 3930482690, 7860965380, 15721930760]

約数ペア:

[(1, 15721930760), (2, 7860965380), (4, 3930482690), (5, 3144386152), (8, 1965241345), (10, 1572193076), (19, 827470040), (20, 786096538), (38, 413735020), (40, 393048269), (76, 206867510), (95, 165494008), (152, 103433755), (190, 82747004), (380, 41373502), (760, 20686751)]