81684405

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{571}}^1$

素因数の和:627

約数の個数: 72

約数和(自身を含む): 164365344

約数和(自身を除く): 82680939

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 51, 55, 85, 99, 153, 165, 187, 255, 289, 495, 561, 571, 765, 867, 935, 1445, 1683, 1713, 2601, 2805, 2855, 3179, 4335, 5139, 6281, 8415, 8565, 9537, 9707, 13005, 15895, 18843, 25695, 28611, 29121, 31405, 47685, 48535, 56529, 87363, 94215, 106777, 143055, 145605, 165019, 282645, 320331, 436815, 495057, 533885, 825095, 960993, 1485171, 1601655, 1815209, 2475285, 4804965, 5445627, 7425855, 9076045, 16336881, 27228135, 81684405]

約数ペア:

[(1, 81684405), (3, 27228135), (5, 16336881), (9, 9076045), (11, 7425855), (15, 5445627), (17, 4804965), (33, 2475285), (45, 1815209), (51, 1601655), (55, 1485171), (85, 960993), (99, 825095), (153, 533885), (165, 495057), (187, 436815), (255, 320331), (289, 282645), (495, 165019), (561, 145605), (571, 143055), (765, 106777), (867, 94215), (935, 87363), (1445, 56529), (1683, 48535), (1713, 47685), (2601, 31405), (2805, 29121), (2855, 28611), (3179, 25695), (4335, 18843), (5139, 15895), (6281, 13005), (8415, 9707), (8565, 9537)]