20048625

素因数分解:

$3^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 36796032

約数和(自身を除く): 16747407

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 125, 213, 225, 251, 355, 375, 639, 753, 1065, 1125, 1255, 1775, 2259, 3195, 3765, 5325, 6275, 8875, 11295, 15975, 17821, 18825, 26625, 31375, 53463, 56475, 79875, 89105, 94125, 160389, 267315, 282375, 445525, 801945, 1336575, 2227625, 4009725, 6682875, 20048625]

約数ペア:

[(1, 20048625), (3, 6682875), (5, 4009725), (9, 2227625), (15, 1336575), (25, 801945), (45, 445525), (71, 282375), (75, 267315), (125, 160389), (213, 94125), (225, 89105), (251, 79875), (355, 56475), (375, 53463), (639, 31375), (753, 26625), (1065, 18825), (1125, 17821), (1255, 15975), (1775, 11295), (2259, 8875), (3195, 6275), (3765, 5325)]