20273925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 40594624

約数和(自身を除く): 20320699

約数列:

[1, 3, 5, 7, 15, 21, 23, 25, 35, 69, 73, 75, 105, 115, 161, 175, 219, 345, 365, 483, 511, 525, 529, 575, 805, 1095, 1533, 1587, 1679, 1725, 1825, 2415, 2555, 2645, 3703, 4025, 5037, 5475, 7665, 7935, 8395, 11109, 11753, 12075, 12775, 13225, 18515, 25185, 35259, 38325, 38617, 39675, 41975, 55545, 58765, 92575, 115851, 125925, 176295, 193085, 270319, 277725, 293825, 579255, 810957, 881475, 965425, 1351595, 2896275, 4054785, 6757975, 20273925]

約数ペア:

[(1, 20273925), (3, 6757975), (5, 4054785), (7, 2896275), (15, 1351595), (21, 965425), (23, 881475), (25, 810957), (35, 579255), (69, 293825), (73, 277725), (75, 270319), (105, 193085), (115, 176295), (161, 125925), (175, 115851), (219, 92575), (345, 58765), (365, 55545), (483, 41975), (511, 39675), (525, 38617), (529, 38325), (575, 35259), (805, 25185), (1095, 18515), (1533, 13225), (1587, 12775), (1679, 12075), (1725, 11753), (1825, 11109), (2415, 8395), (2555, 7935), (2645, 7665), (3703, 5475), (4025, 5037)]