1799090020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{988511}}^1$

素因数の和:988540

約数の個数: 48

約数和(自身を含む): 4649960448

約数和(自身を除く): 2850870428

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 988511, 1977022, 3954044, 4942555, 6919577, 9885110, 12850643, 13839154, 19770220, 25701286, 27678308, 34597885, 51402572, 64253215, 69195770, 89954501, 128506430, 138391540, 179909002, 257012860, 359818004, 449772505, 899545010, 1799090020]

約数ペア:

[(1, 1799090020), (2, 899545010), (4, 449772505), (5, 359818004), (7, 257012860), (10, 179909002), (13, 138391540), (14, 128506430), (20, 89954501), (26, 69195770), (28, 64253215), (35, 51402572), (52, 34597885), (65, 27678308), (70, 25701286), (91, 19770220), (130, 13839154), (140, 12850643), (182, 9885110), (260, 6919577), (364, 4942555), (455, 3954044), (910, 1977022), (1820, 988511)]