81668184

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261757}}^1$

素因数の和:261779

約数の個数: 32

約数和(自身を含む): 219876720

約数和(自身を除く): 138208536

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 261757, 523514, 785271, 1047028, 1570542, 2094056, 3141084, 3402841, 6282168, 6805682, 10208523, 13611364, 20417046, 27222728, 40834092, 81668184]

約数ペア:

[(1, 81668184), (2, 40834092), (3, 27222728), (4, 20417046), (6, 13611364), (8, 10208523), (12, 6805682), (13, 6282168), (24, 3402841), (26, 3141084), (39, 2094056), (52, 1570542), (78, 1047028), (104, 785271), (156, 523514), (312, 261757)]