78464020

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{4423}}^1$

素因数の和:5319

約数の個数: 24

約数和(自身を含む): 164997504

約数和(自身を除く): 86533484

約数列:

[1, 2, 4, 5, 10, 20, 887, 1774, 3548, 4423, 4435, 8846, 8870, 17692, 17740, 22115, 44230, 88460, 3923201, 7846402, 15692804, 19616005, 39232010, 78464020]

約数ペア:

[(1, 78464020), (2, 39232010), (4, 19616005), (5, 15692804), (10, 7846402), (20, 3923201), (887, 88460), (1774, 44230), (3548, 22115), (4423, 17740), (4435, 17692), (8846, 8870)]