About the Number

209712170

209712169 ← → 209712171

2進数表記:1100011111111111010000101010

漢数字表記:二億九百七十一万二千百七十

素因数分解:

2 1 × 5 1 × 17 1 × 199 1 × 6199 1

素因数の和:6422
約数の個数: 32
約数和(自身を含む): 401760000
約数和(自身を除く): 192047830

約数列:
[1, 2, 5, 10, 17, 34, 85, 170, 199, 398, 995, 1990, 3383, 6199, 6766, 12398, 16915, 30995, 33830, 61990, 105383, 210766, 526915, 1053830, 1233601, 2467202, 6168005, 12336010, 20971217, 41942434, 104856085, 209712170]

約数ペア:
[(1, 209712170), (2, 104856085), (5, 41942434), (10, 20971217), (17, 12336010), (34, 6168005), (85, 2467202), (170, 1233601), (199, 1053830), (398, 526915), (995, 210766), (1990, 105383), (3383, 61990), (6199, 33830), (6766, 30995), (12398, 16915)]

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