15621880

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3583}}^1$

素因数の和:3703

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 19859720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 3583, 4360, 7166, 14332, 17915, 28664, 35830, 71660, 143320, 390547, 781094, 1562188, 1952735, 3124376, 3905470, 7810940, 15621880]

約数ペア:

[(1, 15621880), (2, 7810940), (4, 3905470), (5, 3124376), (8, 1952735), (10, 1562188), (20, 781094), (40, 390547), (109, 143320), (218, 71660), (436, 35830), (545, 28664), (872, 17915), (1090, 14332), (2180, 7166), (3583, 4360)]