71520105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2141}}^1$

素因数の和:2297

約数の個数: 32

約数和(自身を含む): 122145408

約数和(自身を除く): 50625303

約数列:

[1, 3, 5, 15, 17, 51, 85, 131, 255, 393, 655, 1965, 2141, 2227, 6423, 6681, 10705, 11135, 32115, 33405, 36397, 109191, 181985, 280471, 545955, 841413, 1402355, 4207065, 4768007, 14304021, 23840035, 71520105]

約数ペア:

[(1, 71520105), (3, 23840035), (5, 14304021), (15, 4768007), (17, 4207065), (51, 1402355), (85, 841413), (131, 545955), (255, 280471), (393, 181985), (655, 109191), (1965, 36397), (2141, 33405), (2227, 32115), (6423, 11135), (6681, 10705)]