18897880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{27791}}^1$

素因数の和:27819

約数の個数: 32

約数和(自身を含む): 45023040

約数和(自身を除く): 26125160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 27791, 55582, 111164, 138955, 222328, 277910, 472447, 555820, 944894, 1111640, 1889788, 2362235, 3779576, 4724470, 9448940, 18897880]

約数ペア:

[(1, 18897880), (2, 9448940), (4, 4724470), (5, 3779576), (8, 2362235), (10, 1889788), (17, 1111640), (20, 944894), (34, 555820), (40, 472447), (68, 277910), (85, 222328), (136, 138955), (170, 111164), (340, 55582), (680, 27791)]