15390405

素因数分解:

$3^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 28304640

約数和(自身を除く): 12914235

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 239, 243, 265, 405, 477, 717, 795, 1195, 1215, 1431, 2151, 2385, 3585, 4293, 6453, 7155, 10755, 12667, 12879, 19359, 21465, 32265, 38001, 58077, 63335, 64395, 96795, 114003, 190005, 290385, 342009, 570015, 1026027, 1710045, 3078081, 5130135, 15390405]

約数ペア:

[(1, 15390405), (3, 5130135), (5, 3078081), (9, 1710045), (15, 1026027), (27, 570015), (45, 342009), (53, 290385), (81, 190005), (135, 114003), (159, 96795), (239, 64395), (243, 63335), (265, 58077), (405, 38001), (477, 32265), (717, 21465), (795, 19359), (1195, 12879), (1215, 12667), (1431, 10755), (2151, 7155), (2385, 6453), (3585, 4293)]