28181835

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{197}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 56895696

約数和(自身を除く): 28713861

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 51, 55, 85, 99, 153, 165, 187, 197, 255, 289, 495, 561, 591, 765, 867, 935, 985, 1445, 1683, 1773, 2167, 2601, 2805, 2955, 3179, 3349, 4335, 6501, 8415, 8865, 9537, 10047, 10835, 13005, 15895, 16745, 19503, 28611, 30141, 32505, 36839, 47685, 50235, 56933, 97515, 110517, 143055, 150705, 170799, 184195, 284665, 331551, 512397, 552585, 626263, 853995, 1657755, 1878789, 2561985, 3131315, 5636367, 9393945, 28181835]

約数ペア:

[(1, 28181835), (3, 9393945), (5, 5636367), (9, 3131315), (11, 2561985), (15, 1878789), (17, 1657755), (33, 853995), (45, 626263), (51, 552585), (55, 512397), (85, 331551), (99, 284665), (153, 184195), (165, 170799), (187, 150705), (197, 143055), (255, 110517), (289, 97515), (495, 56933), (561, 50235), (591, 47685), (765, 36839), (867, 32505), (935, 30141), (985, 28611), (1445, 19503), (1683, 16745), (1773, 15895), (2167, 13005), (2601, 10835), (2805, 10047), (2955, 9537), (3179, 8865), (3349, 8415), (4335, 6501)]