20415560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46399}}^1$

素因数の和:46421

約数の個数: 32

約数和(自身を含む): 50112000

約数和(自身を除く): 29696440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46399, 92798, 185596, 231995, 371192, 463990, 510389, 927980, 1020778, 1855960, 2041556, 2551945, 4083112, 5103890, 10207780, 20415560]

約数ペア:

[(1, 20415560), (2, 10207780), (4, 5103890), (5, 4083112), (8, 2551945), (10, 2041556), (11, 1855960), (20, 1020778), (22, 927980), (40, 510389), (44, 463990), (55, 371192), (88, 231995), (110, 185596), (220, 92798), (440, 46399)]