28640912

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{20113}}^1$

素因数の和:20210

約数の個数: 20

約数和(自身を含む): 56118060

約数和(自身を除く): 27477148

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 20113, 40226, 80452, 160904, 321808, 1790057, 3580114, 7160228, 14320456, 28640912]

約数ペア:

[(1, 28640912), (2, 14320456), (4, 7160228), (8, 3580114), (16, 1790057), (89, 321808), (178, 160904), (356, 80452), (712, 40226), (1424, 20113)]