18898180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5869}}^1$

素因数の和:5908

約数の個数: 48

約数和(自身を含む): 47335680

約数和(自身を除く): 28437500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5869, 11738, 23476, 29345, 41083, 58690, 82166, 117380, 134987, 164332, 205415, 269974, 410830, 539948, 674935, 821660, 944909, 1349870, 1889818, 2699740, 3779636, 4724545, 9449090, 18898180]

約数ペア:

[(1, 18898180), (2, 9449090), (4, 4724545), (5, 3779636), (7, 2699740), (10, 1889818), (14, 1349870), (20, 944909), (23, 821660), (28, 674935), (35, 539948), (46, 410830), (70, 269974), (92, 205415), (115, 164332), (140, 134987), (161, 117380), (230, 82166), (322, 58690), (460, 41083), (644, 29345), (805, 23476), (1610, 11738), (3220, 5869)]