71910020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{39511}}^1$

素因数の和:39540

約数の個数: 48

約数和(自身を含む): 185864448

約数和(自身を除く): 113954428

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, 39511, 79022, 158044, 197555, 276577, 395110, 513643, 553154, 790220, 1027286, 1106308, 1382885, 2054572, 2568215, 2765770, 3595501, 5136430, 5531540, 7191002, 10272860, 14382004, 17977505, 35955010, 71910020]

約数ペア:

[(1, 71910020), (2, 35955010), (4, 17977505), (5, 14382004), (7, 10272860), (10, 7191002), (13, 5531540), (14, 5136430), (20, 3595501), (26, 2765770), (28, 2568215), (35, 2054572), (52, 1382885), (65, 1106308), (70, 1027286), (91, 790220), (130, 553154), (140, 513643), (182, 395110), (260, 276577), (364, 197555), (455, 158044), (910, 79022), (1820, 39511)]