204396975

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 386260992

約数和(自身を除く): 181864017

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 127, 207, 225, 311, 345, 381, 575, 635, 933, 1035, 1143, 1555, 1725, 1905, 2799, 2921, 3175, 4665, 5175, 5715, 7153, 7775, 8763, 9525, 13995, 14605, 21459, 23325, 26289, 28575, 35765, 39497, 43815, 64377, 69975, 73025, 107295, 118491, 131445, 178825, 197485, 219075, 321885, 355473, 536475, 592455, 657225, 908431, 987425, 1609425, 1777365, 2725293, 2962275, 4542155, 8175879, 8886825, 13626465, 22710775, 40879395, 68132325, 204396975]

約数ペア:

[(1, 204396975), (3, 68132325), (5, 40879395), (9, 22710775), (15, 13626465), (23, 8886825), (25, 8175879), (45, 4542155), (69, 2962275), (75, 2725293), (115, 1777365), (127, 1609425), (207, 987425), (225, 908431), (311, 657225), (345, 592455), (381, 536475), (575, 355473), (635, 321885), (933, 219075), (1035, 197485), (1143, 178825), (1555, 131445), (1725, 118491), (1905, 107295), (2799, 73025), (2921, 69975), (3175, 64377), (4665, 43815), (5175, 39497), (5715, 35765), (7153, 28575), (7775, 26289), (8763, 23325), (9525, 21459), (13995, 14605)]