20453724

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 53925872

約数和(自身を除く): 33472148

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 73, 86, 129, 146, 172, 181, 219, 258, 292, 362, 387, 438, 516, 543, 657, 724, 774, 876, 1086, 1314, 1548, 1629, 2172, 2628, 3139, 3258, 6278, 6516, 7783, 9417, 12556, 13213, 15566, 18834, 23349, 26426, 28251, 31132, 37668, 39639, 46698, 52852, 56502, 70047, 79278, 93396, 113004, 118917, 140094, 158556, 237834, 280188, 475668, 568159, 1136318, 1704477, 2272636, 3408954, 5113431, 6817908, 10226862, 20453724]

約数ペア:

[(1, 20453724), (2, 10226862), (3, 6817908), (4, 5113431), (6, 3408954), (9, 2272636), (12, 1704477), (18, 1136318), (36, 568159), (43, 475668), (73, 280188), (86, 237834), (129, 158556), (146, 140094), (172, 118917), (181, 113004), (219, 93396), (258, 79278), (292, 70047), (362, 56502), (387, 52852), (438, 46698), (516, 39639), (543, 37668), (657, 31132), (724, 28251), (774, 26426), (876, 23349), (1086, 18834), (1314, 15566), (1548, 13213), (1629, 12556), (2172, 9417), (2628, 7783), (3139, 6516), (3258, 6278)]