18519832

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 37989000

約数和(自身を除く): 19469168

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 89, 148, 152, 178, 296, 356, 703, 712, 1369, 1406, 1691, 2738, 2812, 3293, 3382, 5476, 5624, 6586, 6764, 10952, 13172, 13528, 26011, 26344, 52022, 62567, 104044, 121841, 125134, 208088, 243682, 250268, 487364, 500536, 974728, 2314979, 4629958, 9259916, 18519832]

約数ペア:

[(1, 18519832), (2, 9259916), (4, 4629958), (8, 2314979), (19, 974728), (37, 500536), (38, 487364), (74, 250268), (76, 243682), (89, 208088), (148, 125134), (152, 121841), (178, 104044), (296, 62567), (356, 52022), (703, 26344), (712, 26011), (1369, 13528), (1406, 13172), (1691, 10952), (2738, 6764), (2812, 6586), (3293, 5624), (3382, 5476)]