215778825

素因数分解:

$3^2\times 5^2\times {\mathrm{193}}^1\times {\mathrm{4969}}^1$

素因数の和:5178

約数の個数: 36

約数和(自身を含む): 388564540

約数和(自身を除く): 172785715

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 193, 225, 579, 965, 1737, 2895, 4825, 4969, 8685, 14475, 14907, 24845, 43425, 44721, 74535, 124225, 223605, 372675, 959017, 1118025, 2877051, 4795085, 8631153, 14385255, 23975425, 43155765, 71926275, 215778825]

約数ペア:

[(1, 215778825), (3, 71926275), (5, 43155765), (9, 23975425), (15, 14385255), (25, 8631153), (45, 4795085), (75, 2877051), (193, 1118025), (225, 959017), (579, 372675), (965, 223605), (1737, 124225), (2895, 74535), (4825, 44721), (4969, 43425), (8685, 24845), (14475, 14907)]