9155990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:356

約数の個数: 32

約数和(自身を含む): 17107200

約数和(自身を除く): 7951210

約数列:

[1, 2, 5, 10, 43, 86, 107, 199, 214, 215, 398, 430, 535, 995, 1070, 1990, 4601, 8557, 9202, 17114, 21293, 23005, 42586, 42785, 46010, 85570, 106465, 212930, 915599, 1831198, 4577995, 9155990]

約数ペア:

[(1, 9155990), (2, 4577995), (5, 1831198), (10, 915599), (43, 212930), (86, 106465), (107, 85570), (199, 46010), (214, 42785), (215, 42586), (398, 23005), (430, 21293), (535, 17114), (995, 9202), (1070, 8557), (1990, 4601)]