28140465

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 46189440

約数和(自身を除く): 18048975

約数列:

[1, 3, 5, 15, 89, 107, 197, 267, 321, 445, 535, 591, 985, 1335, 1605, 2955, 9523, 17533, 21079, 28569, 47615, 52599, 63237, 87665, 105395, 142845, 262995, 316185, 1876031, 5628093, 9380155, 28140465]

約数ペア:

[(1, 28140465), (3, 9380155), (5, 5628093), (15, 1876031), (89, 316185), (107, 262995), (197, 142845), (267, 105395), (321, 87665), (445, 63237), (535, 52599), (591, 47615), (985, 28569), (1335, 21079), (1605, 17533), (2955, 9523)]