20993880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1277}}^1$

素因数の和:1428

約数の個数: 64

約数和(自身を含む): 63491040

約数和(自身を除く): 42497160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1277, 1370, 1644, 2055, 2554, 2740, 3288, 3831, 4110, 5108, 5480, 6385, 7662, 8220, 10216, 12770, 15324, 16440, 19155, 25540, 30648, 38310, 51080, 76620, 153240, 174949, 349898, 524847, 699796, 874745, 1049694, 1399592, 1749490, 2099388, 2624235, 3498980, 4198776, 5248470, 6997960, 10496940, 20993880]

約数ペア:

[(1, 20993880), (2, 10496940), (3, 6997960), (4, 5248470), (5, 4198776), (6, 3498980), (8, 2624235), (10, 2099388), (12, 1749490), (15, 1399592), (20, 1049694), (24, 874745), (30, 699796), (40, 524847), (60, 349898), (120, 174949), (137, 153240), (274, 76620), (411, 51080), (548, 38310), (685, 30648), (822, 25540), (1096, 19155), (1277, 16440), (1370, 15324), (1644, 12770), (2055, 10216), (2554, 8220), (2740, 7662), (3288, 6385), (3831, 5480), (4110, 5108)]