20131875

素因数分解:

$3^3\times 5^4\times {\mathrm{1193}}^1$

素因数の和:1222

約数の個数: 40

約数和(自身を含む): 37300560

約数和(自身を除く): 17168685

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1193, 1875, 3375, 3579, 5625, 5965, 10737, 16875, 17895, 29825, 32211, 53685, 89475, 149125, 161055, 268425, 447375, 745625, 805275, 1342125, 2236875, 4026375, 6710625, 20131875]

約数ペア:

[(1, 20131875), (3, 6710625), (5, 4026375), (9, 2236875), (15, 1342125), (25, 805275), (27, 745625), (45, 447375), (75, 268425), (125, 161055), (135, 149125), (225, 89475), (375, 53685), (625, 32211), (675, 29825), (1125, 17895), (1193, 16875), (1875, 10737), (3375, 5965), (3579, 5625)]