71691880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137869}}^1$

素因数の和:137893

約数の個数: 32

約数和(自身を含む): 173716200

約数和(自身を除く): 102024320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 137869, 275738, 551476, 689345, 1102952, 1378690, 1792297, 2757380, 3584594, 5514760, 7169188, 8961485, 14338376, 17922970, 35845940, 71691880]

約数ペア:

[(1, 71691880), (2, 35845940), (4, 17922970), (5, 14338376), (8, 8961485), (10, 7169188), (13, 5514760), (20, 3584594), (26, 2757380), (40, 1792297), (52, 1378690), (65, 1102952), (104, 689345), (130, 551476), (260, 275738), (520, 137869)]