72211880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{138869}}^1$

素因数の和:138893

約数の個数: 32

約数和(自身を含む): 174976200

約数和(自身を除く): 102764320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 138869, 277738, 555476, 694345, 1110952, 1388690, 1805297, 2777380, 3610594, 5554760, 7221188, 9026485, 14442376, 18052970, 36105940, 72211880]

約数ペア:

[(1, 72211880), (2, 36105940), (4, 18052970), (5, 14442376), (8, 9026485), (10, 7221188), (13, 5554760), (20, 3610594), (26, 2777380), (40, 1805297), (52, 1388690), (65, 1110952), (104, 694345), (130, 555476), (260, 277738), (520, 138869)]