8991185

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 13001472

約数和(自身を除く): 4010287

約数列:

[1, 5, 7, 35, 37, 53, 131, 185, 259, 265, 371, 655, 917, 1295, 1855, 1961, 4585, 4847, 6943, 9805, 13727, 24235, 33929, 34715, 48601, 68635, 169645, 243005, 256891, 1284455, 1798237, 8991185]

約数ペア:

[(1, 8991185), (5, 1798237), (7, 1284455), (35, 256891), (37, 243005), (53, 169645), (131, 68635), (185, 48601), (259, 34715), (265, 33929), (371, 24235), (655, 13727), (917, 9805), (1295, 6943), (1855, 4847), (1961, 4585)]