188870840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{43319}}^1$

素因数の和:43439

約数の個数: 32

約数和(自身を含む): 428868000

約数和(自身を除く): 239997160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 43319, 86638, 173276, 216595, 346552, 433190, 866380, 1732760, 4721771, 9443542, 18887084, 23608855, 37774168, 47217710, 94435420, 188870840]

約数ペア:

[(1, 188870840), (2, 94435420), (4, 47217710), (5, 37774168), (8, 23608855), (10, 18887084), (20, 9443542), (40, 4721771), (109, 1732760), (218, 866380), (436, 433190), (545, 346552), (872, 216595), (1090, 173276), (2180, 86638), (4360, 43319)]