161212785

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{4243}}^1$

素因数の和:4417

約数の個数: 32

約数和(自身を含む): 275011200

約数和(自身を除く): 113798415

約数列:

[1, 3, 5, 15, 17, 51, 85, 149, 255, 447, 745, 2235, 2533, 4243, 7599, 12665, 12729, 21215, 37995, 63645, 72131, 216393, 360655, 632207, 1081965, 1896621, 3161035, 9483105, 10747519, 32242557, 53737595, 161212785]

約数ペア:

[(1, 161212785), (3, 53737595), (5, 32242557), (15, 10747519), (17, 9483105), (51, 3161035), (85, 1896621), (149, 1081965), (255, 632207), (447, 360655), (745, 216393), (2235, 72131), (2533, 63645), (4243, 37995), (7599, 21215), (12665, 12729)]