18887820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{44971}}^1$

素因数の和:44990

約数の個数: 48

約数和(自身を含む): 60442368

約数和(自身を除く): 41554548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 44971, 89942, 134913, 179884, 224855, 269826, 314797, 449710, 539652, 629594, 674565, 899420, 944391, 1259188, 1349130, 1573985, 1888782, 2698260, 3147970, 3777564, 4721955, 6295940, 9443910, 18887820]

約数ペア:

[(1, 18887820), (2, 9443910), (3, 6295940), (4, 4721955), (5, 3777564), (6, 3147970), (7, 2698260), (10, 1888782), (12, 1573985), (14, 1349130), (15, 1259188), (20, 944391), (21, 899420), (28, 674565), (30, 629594), (35, 539652), (42, 449710), (60, 314797), (70, 269826), (84, 224855), (105, 179884), (140, 134913), (210, 89942), (420, 44971)]